BlogJava-waysun一路阳光-随笔分类-cnweblog/nm1504

HSQL查询乱码【转总结】

weesun一米阳光 — Sun, 22 Feb 2009 11:50:00 GMT

在spring+hibernate中：Hql中有中文参数（如from test as c where c.name='张三'）的话被翻译成sql的时候会出现乱码，解决办法是在application.xml中加入以下语句：

<prop key="hibernate.query.factory_class">
org.hibernate.hql.classic.ClassicQueryTranslatorFactory
prop>

在hibernate.cfg.xml 中加入下面的属性

org.hibernate.hql.classic.ClassicQueryTranslatorFactory

weesun一米阳光 2009-02-22 19:50 发表评论

Hibernate3.0中实现模糊查询【总结】

weesun一米阳光 — Sun, 22 Feb 2009 11:50:00 GMT

今天的项目中在用Hibernate3.0进行模糊查询的时候，出现中文乱码，在网上查了好久资料，终于解决了，现在把整理后的贴出来。
Hibernate中实现模糊查询，可有以下三种方式：

第一种方式：QBC查询
String name = "", info = "";
if (sub != null && sub.getSubname() != null) {
name = sub.getSubname();
}
if (sub != null && sub.getSubinfo() != null) {
info = sub.getSubinfo();
}
Criteria cr = session.createCriteria(Subject.class);
cr.add(Expression.like("subname","%"+name+"%"));
cr.add(Expression.like("subinfo","%"+info+"%"));

第二种方式：HQL查询语句
String hql = "from Subject as s where s.subname like :name and s.subinfo like :info";
// 调用session的获得数据列表方法，传递HQL查询语句
String subnamevalue="要查询的中文值";
String sql="";
sql = "from Pfapp where name like :subname ";
Query query = session.createQuery(sql);
query.setString("subname","%"+subnamevalue+"%");
System.out.println("*********"+sql);

注：Subject为数据库表subject映射的类；它有相应的属性subname、subinfo及相应的get和set方法；sub为Subject的一个实例化对象。
另外说明的是：如果你不写对象名称，直接写字段，那么hibernate就按照数据库字段进行查找
如果你写 (对象名.对象属性），那么hibernate就按照ormapping中的映射字段进行查找
这是hibernate的灵活之处！！

weesun一米阳光 2009-02-22 19:50 发表评论

ant-build.xml打包应用程序【总结】

weesun一米阳光 — Sun, 22 Feb 2009 11:47:00 GMT

弄了好久的ant打包终于明白了，贴出来大家分享。

清理完毕

  depends="init"

  description="编译源文件">


   destdir="${dir.java.build}"

   deprecation="off"

   debug="off"

   encoding="gbk"

   source="1.5"

   target="1.5">

weesun一米阳光 2009-02-22 19:47 发表评论

在Struts中Action传参数 [总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:47:00 GMT

public ActionForward userSave(ActionMapping mapping, ActionForm form,
   HttpServletRequest request, HttpServletResponse response) {
  UserForm userForm = (UserForm) form;
  return mapping.findForward("userSave");
}

//传参数
public ActionForward userSave(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
UserForm userForm = (UserForm) form;
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

String path = mapping.findForward("delete").getPath();

//TODO: 读取本Action所有的请求参数，将path重新构造，加上请求参数

  ActionForward forward= new ActionForward(path+"&pageId=1");
  forward.setRedirect(true);
//传参数后返回
  return forward;

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

// return mapping.findForward("userSave");
}

weesun一米阳光 2009-02-22 19:47 发表评论

保存和提交按钮事件[总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:43:00 GMT

1.

2.
function Save()
    {
    var theForm=document.projectSetForm;
   theForm.action="scoreOperation.do?do=creat";
   theForm.submit();
    }
     function Commit()
    {
    var theForm=document.projectSetForm;
  theForm.action="projectSet.do?do=save";
  theForm.submit();
    }
3.

weesun一米阳光 2009-02-22 19:43 发表评论

bean:define id的使用[总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:40:00 GMT

id:指的是这个bean的唯一名字(可以自由定义或者说可以自定义但是必须唯一)，在这里定义的id="pagename" ,在要调用的网页里面可以随便的使用和访问/
name:指的是从上一个页面或者action里面传过来的变量，可以是任何类型。(例如再上一网页定义request.setAttribute("requestName", requestName);)
例如：
我有一个Bean对象User对象，这个里面保存了admin管理员的个人信息，姓名(name)，性别(sex)、年龄(age)那么怎么用呢。
在action里面你可以把User对象传过来
request.setAttribute("user",User);
在页面

然后就可以和bean:write搭配使用

weesun一米阳光 2009-02-22 19:40 发表评论

Hibernate实现one-to-one级联保存[自己总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:38:00 GMT

http://www.blogjava.net/1504/admin/EditPosts.aspx?opt=1

在具体的项目应用中,我们很少会用到一对一的级联操作,且很多时候一对一的操作可以通过多对一实现,但是一对一有自己的好处,就是在任何时候都能保证主外键数据的一致性,但是多对一的情况下未必能做到.
我在项目中具体用到了一对一的级联操作,从网上拿了一个例子来做,但是没有成功,于是只好自己研究,现在把修改后的代码帖出来.
本例子使用hibernate3.jar+oracle数据库
库表:
CARD_TEST(CARDID[NUMBER(18)],CARDNUM[VARCHAR2(20)])
USER_TEST(USERID[NUMBER(18)],USERNAME[VARCHAR2(20)])
TestMain.java

package com.gpdi.test;
import org.hibernate.Session;
import org.hibernate.Transaction;
public class TestMain {
/**
* 存储一个用户
* @param user
*/
public void save(User user){
user.setUsername("TEST");
Card card=new Card();
//Card card1=new Card();
card.setCardnum("HGJUYT");
//card1.setCardnum("fghy55");
user.setCard(card);
//user.setCard(card1);
Session session=HibernateSessionFactory.currentSession();
card.setUser(user);
//card1.setUser(user);
Transaction tr=session.beginTransaction();
session.save(user);
//session.save(card);
tr.commit();
session.close();
}

public static void main(String[] args) throws Exception {
TestMain test=new TestMain();
test.save(new User());
}

}
Card.java

package com.gpdi.test;

/**
* Card generated by MyEclipse - Hibernate Tools
*/

public class Card implements java.io.Serializable {
// Fields

     private Integer cardid;
     private String cardnum;
     private User user;

// Constructors

    public User getUser() {
  return user;
}
public void setUser(User user) {
  this.user = user;
}
/** default constructor */
    public Card() {
    }
    /** full constructor */
    public Card(String cardnum) {
        this.cardnum = cardnum;
    }
    // Property accessors

    public Integer getCardid() {
        return this.cardid;
    }

    public void setCardid(Integer cardid) {
        this.cardid = cardid;
    }

    public String getCardnum() {
        return this.cardnum;
    }

    public void setCardnum(String cardnum) {
        this.cardnum = cardnum;
    }

}

User.java
package com.gpdi.test;

import java.util.HashSet;
import java.util.Set;

/**
* User generated by MyEclipse - Hibernate Tools
*/

public class User implements java.io.Serializable {
// Fields

     private Integer userid;
     private String username;
     private Card card;
     //private Set card = new HashSet();
    // Constructors

    public Card getCard() {
  return card;
}
public void setCard(Card card) {
  this.card = card;
}
/** default constructor */
    public User() {
    }
    /** full constructor */
    public User(String username) {
        this.username = username;
    }
    // Property accessors

    public Integer getUserid() {
        return this.userid;
    }

    public void setUserid(Integer userid) {
        this.userid = userid;
    }

    public String getUsername() {
        return this.username;
    }

    public void setUsername(String username) {
        this.username = username;
    }
}
HibernateSessionFactory.java

package com.gpdi.test;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.cfg.Configuration;

/**
* Configures and provides access to Hibernate sessions, tied to the
* current thread of execution. Follows the Thread Local Session
* pattern, see {@link http://hibernate.org/42.html}.
*/
public class HibernateSessionFactory {

    /**
     * Location of hibernate.cfg.xml file.
     * NOTICE: Location should be on the classpath as Hibernate uses
     * #resourceAsStream style lookup for its configuration file. That
     * is place the config file in a Java package - the default location
     * is the default Java package.

     * Examples:

     * CONFIG_FILE_LOCATION = "/hibernate.conf.xml".      * CONFIG_FILE_LOCATION = "/com/foo/bar/myhiberstuff.conf.xml".
     */
    private static String CONFIG_FILE_LOCATION = "/hibernate.cfg.xml";

/** Holds a single instance of Session */
private static final ThreadLocal threadLocal = new ThreadLocal();

/** The single instance of hibernate configuration */
private static final Configuration cfg = new Configuration();

/** The single instance of hibernate SessionFactory */
private static org.hibernate.SessionFactory sessionFactory;

    /**
     * Returns the ThreadLocal Session instance. Lazy initialize
     * the SessionFactory if needed.
     *
     * @return Session
     * @throws HibernateException
     */
    public static Session currentSession() throws HibernateException {
        Session session = (Session) threadLocal.get();

  if (session == null || !session.isOpen()) {
   if (sessionFactory == null) {
    try {
     cfg.configure(CONFIG_FILE_LOCATION);
     sessionFactory = cfg.buildSessionFactory();
    } catch (Exception e) {
     System.err
       .println("%%%% Error Creating SessionFactory %%%%");
     e.printStackTrace();
    }
   }
   session = (sessionFactory != null) ? sessionFactory.openSession()
     : null;
   threadLocal.set(session);
  }

return session;
}

    /**
     * Close the single hibernate session instance.
     *
     * @throws HibernateException
     */
    public static void closeSession() throws HibernateException {
        Session session = (Session) threadLocal.get();
        threadLocal.set(null);

        if (session != null) {
            session.close();
        }
    }

    /**
     * Default constructor.
     */
    private HibernateSessionFactory() {
    }

}
Card.hbm.xml

"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

            user

User.hbm.xml

"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

http://www.blogjava.net/Files/1504/one-to--one.rar

weesun一米阳光 2009-02-22 19:38 发表评论

Hibernate一对多双向关联及inverse的作用[整理总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:36:00 GMT

http://www.blogjava.net/Files/1504/Hibernate-onetomany.txt一个一对多的完整例子:资料来源网络,进行整理.
people表：{peopleId,name}

address表：{addressId,peopleId,addressName,codeNumber}

package com.gpdi.test;

import org.hibernate.Session;

import com.gpdi.orm.object.Address;
import com.gpdi.orm.object.People;

public class Testp {

/**
* @param args
*/
public static void main(String[] args)
{
  People people = new People();
  people.setName("linda");
  Address address = new Address();
  address.setAddressName("yunnan");
  address.setCodeNumber("564123");
  address.setPeople(people);
  people.getAddresses().add(address);
  Session session = HibernateSessionFactory.currentSession();
  session.beginTransaction();
  session.save(people);
  session.getTransaction().commit();

}

People.hbm.xml

"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

People.java

package com.gpdi.orm.object;

import java.util.HashSet;
import java.util.Set;

public class People implements java.io.Serializable
{
private long id;
private String name;
private Set addresses = new HashSet();
public Set getAddresses() {
  return addresses;
}
public void setAddresses(Set addresses) {
  this.addresses = addresses;
}
public long getId() {
  return id;
}
public void setId(long id) {
  this.id = id;
}
public String getName() {
  return name;
}
public void setName(String name) {
  this.name = name;
}

}

Address.hbm.xml

"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

Address.java
package com.gpdi.orm.object;
public class Address implements java.io.Serializable
{
private long id;
private People people;
private String addressName;
private String codeNumber;
public String getAddressName() {
  return addressName;
}
public void setAddressName(String addressName) {
  this.addressName = addressName;
}
public String getCodeNumber() {
  return codeNumber;
}
public void setCodeNumber(String codeNumber) {
  this.codeNumber = codeNumber;
}
public long getId() {
  return id;
}
public void setId(long id) {
  this.id = id;
}
public People getPeople() {
  return people;
}
public void setPeople(People people) {
  this.people = people;
}
}
下载例子:整理后
一对多的完整例子
下载例子:整理前

weesun一米阳光 2009-02-22 19:36 发表评论

AJAX和Struts的action交互使用[原创总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:34:00 GMT

1.请求页面的JS,客户端实现

2.ProjectSetAction.java

package com.gpdi.softevaluate.action;

import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import java.util.Iterator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class ProjectSetAction extends DispatchAction
{

/**
*

模板验证

* @param mapping
* @param form
* @param request
* @param response
* @return
* @throws Exception
*/
public ActionForward check(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)throws Exception
{
   String rest="";
   String lotId="";
   String retn="";
   String flag="";
   CommDaoFactory mgObj = new CommDaoFactory();
   try
   {
       rest=request.getParameter("rest");
       lotId=request.getParameter("lotId");
   }
   catch(Exception e)
   {

   }
if(!rest.equals("0")||!rest.equals("")||rest!=null)
{
     flag="no";
}
else
{
      flag="ok";

}
       PrintWriter out=response.getWriter();
//服务器返回信息
       out.write(flag);
       out.close();
     //读取本Action所有的请求参数，将path重新构造，加上请求参数

     //ActionForward forward= new ActionForward("project/projectSet.do?do=add&lotId=6");
     //forward.setRedirect(true);
      //传参数后返回
     //return forward;
    return mapping.findForward(null);

}
public ActionForward creattable(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)throws Exception
{
     //实现功能代码
return mapping.findForward("create");
}
}
3.struts.config.xml
    parameter="do" path="/project/projectSet" scope="request"
       type="com.gpdi.softevaluate.action.ProjectSetAction" validate="false">

weesun一米阳光 2009-02-22 19:34 发表评论

去掉数组中重复的数字[原创]

weesun一米阳光 — Sun, 22 Feb 2009 11:32:00 GMT

public static ArrayList RemoveRepeatNumber(String[]input)
{
    ArrayList   arraylist=new   ArrayList();
    int k=0;
    for(int i = 0;i     {
     boolean exist=true;
     for(int j=0;j      {
      if(arraylist.get(j).toString().equals(input[i]) )
      {
       exist=false;
       break;
      }
     }
     if(exist)
     {
         arraylist.add(k,input[i]);
         k+=1;
     }
    }
    return arraylist;
}
public static void main(String[]args)
{
String []st={"30","30","29"};
ArrayList str =RemoveRepeatNumber(st);
for(int i=0;i {
   System.out.println(str.get(i));
}
}

weesun一米阳光 2009-02-22 19:32 发表评论

判断数组中是否有重复是数字[原创]

weesun一米阳光 — Sun, 22 Feb 2009 11:32:00 GMT

public static boolean judgeEqual(String[]model)
{
  /**无重复为false,有重复为true*/
  boolean flag=false;
  Set set = new HashSet();
  for(int i = 0;i   {
     if(!model[0].equals(model[i]))
     {
      flag=false;
     }
     else
     {
      flag=true;
     }
  }

  return flag;
}
public static void main(String[]args)
{
       String[] s = {"1","1","1","1","1"};
      System.out.println(judgeEqual(s));
}

weesun一米阳光 2009-02-22 19:32 发表评论

checkbox多选[总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:27:00 GMT

全选

value="">

js代码:

weesun一米阳光 2009-02-22 19:27 发表评论

JSP实现EXCEL导出[总结原创]

weesun一米阳光 — Sun, 22 Feb 2009 11:27:00 GMT

1.JSP页面

统计导出

2.ScoreSetAction.java
public class ScoreSetAction extends DispatchAction
{
         /******实现EXCEL数据导出*******/
public ActionForward importScore(ActionMapping mapping, ActionForm form,HttpServletRequest request,HttpServletResponse response)throws Exception
{

   // 导出数据类型，此处是写死的为3。
   String scoreid = request.getParameter("scoreid");
   String []str=new String[3];
   scoreid=scoreid.replace("/", "");
   String maxscore = "";
   String minscore = "";

   ScoreSetExport scoreSetExport = new ScoreSetExport();
   LinkedHashMap hm = new LinkedHashMap();
   SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
   org.hibernate.classic.Session session = sessionFactory.openSession();
   Query query =session.createQuery("from ScoreViable");
   List users=query.list();
   session.close();
   sessionFactory.close();
   for (ListIterator iterator = users.listIterator(); iterator.hasNext(); )
   {
    ScoreViable user = (ScoreViable) iterator.next();
    System.out.println(user.getBeforCount() +"\n\tAge: " + user.getEndCount());
    maxscore=user.getBeforCount()+"";
    minscore=user.getEndCount()+"";
   }
   str[0]=scoreid;
   str[1]=maxscore;
   str[2]=minscore;
   List list = scoreSetExport.exportScoreSet(str,hm);
   ExcelManagerIf eem = ExcelManagerFactory.getInstance();
   /******************************************************************/
   /**不去掉一行仍然调用export,去掉一行调用export1,只针对一种汇总导出*/
   //eem.export(response, list,hm);
   eem.export1(response, list,hm);
   /******************************************************************/
   return null;
}
}
3.ExcelManagerIf.java
import java.io.InputStream;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;

import javax.servlet.http.HttpServletResponse;

import com.gpdi.orm.object.ScoreRecordDetail;

public interface ExcelManagerIf
{

/********************************************************************************************************/
/** 2008-04-18 11:54*/
public boolean export1(HttpServletResponse response, List list,LinkedHashMap hashMap);
/********************************************************************************************************/

}
4.ExcelManagerFactory.java
public class ExcelManagerFactory
{
   private static String key = "key";
   private ExcelManagerFactory() {
   }

   private static ExcelManagerIf instance = null;
   public static ExcelManagerIf getInstance(){
    if(instance == null){
             synchronized(key){
                 if(instance == null){
                     instance = new ExcelManagerImpl();
                 }
             }
         }
         return instance;
   }
}
5.ExcelManagerImpl.java
import javax.servlet.http.HttpServletResponse;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFFooter;
import org.apache.poi.hssf.usermodel.HSSFHeader;
import org.apache.poi.hssf.usermodel.HSSFPalette;
import org.apache.poi.hssf.usermodel.HSSFPrintSetup;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.hssf.util.Region;
import org.hibernate.Query;
import org.hibernate.ScrollableResults;
import org.hibernate.Session;

public class ExcelManagerImpl implements ExcelManagerIf
{
         /***************************************************************************************************************/
/**2008-04-18 11:36   汇总导出去掉无用的空格*/
public boolean export1(HttpServletResponse response, List list,LinkedHashMap hashMap) {
  Session session = null;
  try {
   // 生成电子表格文件
   HSSFWorkbook wb = new HSSFWorkbook();
   // 通过先建立表格，后命名可以定义使用的编码，从而保证汉字的正常显示
   HSSFSheet sheet1 = wb.createSheet();
   /********************************************/
   /**添加 2008-04-15导出打印默认方式,true：横向     false：纵向*/
   sheet1.getPrintSetup().setLandscape(true);
   /********************************************/
   sheet1.setColumnWidth((short) 0, (short) 5000);
   sheet1.setColumnWidth((short) 1, (short) 5000);
   sheet1.setColumnWidth((short) 2, (short) 5000);
   sheet1.setColumnWidth((short) 3, (short) 5000);
   // wb.setSheetName(0, "开发商资料",HSSFWorkbook.ENCODING_UTF_16);

// HSSFRow row;

   // 先定义一个字体对象
   HSSFFont font = wb.createFont();
   font.setFontName("宋体");
   font.setFontHeightInPoints((short) 16);// 字体大小
   font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);// 加粗

   // 定义表头单元格格式
   HSSFCellStyle cellStyle = wb.createCellStyle();
   cellStyle.setFont(font);// 单元格字体
   cellStyle.setBorderBottom(cellStyle.BORDER_THIN);// 单元格边框
   cellStyle.setBorderTop(cellStyle.BORDER_THIN);
   cellStyle.setBorderRight(cellStyle.BORDER_THIN);
   cellStyle.setBorderLeft(cellStyle.BORDER_THIN);
   cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平对齐方式

   // 定义新的调色板以便定义自己的颜色
   HSSFPalette palette = wb.getCustomPalette();
   // 替换一个默认调色板中已经定义的颜色
   palette.setColorAtIndex(HSSFColor.BLUE_GREY.index, (byte) 230, (byte) 230, (byte) 255);
   // 使用刚才定义的颜色为填充色
   cellStyle.setFillForegroundColor(HSSFColor.BLUE_GREY.index);
   cellStyle.setFillPattern((short) HSSFCellStyle.SOLID_FOREGROUND);

// 写入表头
HSSFCell c;

   // String[] headerName = (String[]) aHeaderName.get(type);
   int[] maxLen = new int[4];
   int maxCol = list.size() + 3;
   ScoreRecordDetail first = list.get(0);
   Long scoreId = first.getScoreRecord().getScoreid();

session = HibernateSessionFactory.getCurrentSession();

   ScoreSet scoreSet = (ScoreSet) session.createQuery("from ScoreSet where scoreid = :scoreid").setLong("scoreid",
     scoreId).uniqueResult();
   String titleName = scoreSet.getScoreLot().getLotName() + "-" + scoreSet.getScoreModel().getScoremodelname();
   //输出文件名落孙山
   String outFileName = scoreSet.getScoreModel().getScoremodelname();

   // 在表单中新建0行
   HSSFRow row0 = sheet1.createRow((short) 0);
   row0.setHeight((short) 600);
   c = row0.createCell((short) 0);
   HSSFCellStyle cellStyle0 = wb.createCellStyle();
   cellStyle0.setFont(font);// 单元格字体0
   cellStyle0.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平对齐方式
   cellStyle0.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);

   cellStyle0.setBorderBottom(cellStyle.BORDER_THIN);// 单元格边框
   cellStyle0.setBorderTop(cellStyle.BORDER_THIN);
   cellStyle0.setBorderRight(cellStyle.BORDER_THIN);
   cellStyle0.setBorderLeft(cellStyle.BORDER_THIN);

   c.setCellStyle(cellStyle0);// 单元格的样式
   c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
   c.setCellValue(titleName);// 单元格值
   sheet1.addMergedRegion(new Region(0, (short) 0, 0, (short) (maxCol-1)));

   // 在表单中新建1行
   /**
   HSSFRow row1 = sheet1.createRow((short) 1);
   row1.setHeight((short) 700);
   c = row1.createCell((short) 0);
   HSSFCellStyle cellStyle1 = wb.createCellStyle();
   cellStyle1.setAlignment(HSSFCellStyle.ALIGN_LEFT); // 水平对齐方式
   cellStyle1.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);

   cellStyle1.setBorderBottom(cellStyle.BORDER_THIN);// 单元格边框
   cellStyle1.setBorderTop(cellStyle.BORDER_THIN);
   cellStyle1.setBorderRight(cellStyle.BORDER_THIN);
   cellStyle1.setBorderLeft(cellStyle.BORDER_THIN);

   c.setCellStyle(cellStyle1);// 单元格的样式
   c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
   c.setCellValue("评标专家签字：");// 单元格值

c = row1.createCell((short) 1);
c.setCellStyle(cellStyle1);// 单元格的样式

   c = row1.createCell((short) 2);
   c.setCellStyle(cellStyle1);// 单元格的样式
   c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
   c.setCellValue("日期：");// 单元格值

   c = row1.createCell((short) 3);
   c.setCellStyle(cellStyle1);// 单元格的样式
   c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
   SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
   c.setCellValue(sdf.format(new Date()));// 单元格值
            */
   // 在表单中新建2行
   HSSFRow row2 = sheet1.createRow((short) 1);
   row2.setHeight((short) 600);

   HSSFCellStyle cellStyle2 = wb.createCellStyle();
   cellStyle2.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平对齐方式
   cellStyle2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
   cellStyle2.setFillBackgroundColor(HSSFColor.AQUA.index);

   cellStyle2.setBorderBottom(cellStyle.BORDER_THIN);// 单元格边框
   cellStyle2.setBorderTop(cellStyle.BORDER_THIN);
   cellStyle2.setBorderRight(cellStyle.BORDER_THIN);
   cellStyle2.setBorderLeft(cellStyle.BORDER_THIN);

   c = row2.createCell((short) 0);
   c.setCellStyle(cellStyle2);// 单元格的样式
   c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
   c.setCellValue("专家名称");// 单元格值
   /*****************************************************************/
   sheet1.addMergedRegion(new Region(1, (short) 0, 1, (short) 1));
   //sheet1.addMergedRegion(new Region(2, (short) 0, 2, (short) 1));
   /*****************************************************************/

   row2.setHeight((short) 400);
   c = row2.createCell((short) 1);
   c.setCellStyle(cellStyle2);// 单元格的样式
   c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
   //c.setCellValue("项目");// 单元格值

   row2.setHeight((short) 400);
   c = row2.createCell((short) 2);
   c.setCellStyle(cellStyle2);// 单元格的样式
   c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
   c.setCellValue("分值");// 单元格值

   //c = row2.createCell((short) 3);
   //c.setCellStyle(cellStyle2);// 单元格的样式

   //重复行
   int rows=0;
   if(hashMap!=null){
    int j=0;

    HSSFRow[] row_repeat= null;
    for (Iterator iterator = hashMap.values().iterator(); iterator.hasNext();) {
     Map map= (LinkedHashMap) iterator.next();
     rows =map.size();
     row_repeat=new HSSFRow[map.size()];
     for(int i=0;i       /****************************************************/
      row_repeat[i] = sheet1.createRow((short) (2+i));
      //row_repeat[i] = sheet1.createRow((short) (3+i));
      /****************************************************/
      row_repeat[i].setHeight((short) 400);
     }
     break;
    }

    for (Iterator iterator = hashMap.values().iterator(); iterator.hasNext();) {
     Map map= (LinkedHashMap) iterator.next();
     int i=0;
     for (Iterator iter_key = map.keySet().iterator(); iter_key.hasNext();) {
      SysUser sysUser = (SysUser) iter_key.next();
      if(j==0){
       c = row_repeat[i].createCell((short) 0);
       c.setCellStyle(cellStyle2);// 单元格的样式
       c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
       c.setCellValue(sysUser.getUsername());// 单元格值
       /******************************************************************/
       sheet1.addMergedRegion(new Region(2+i, (short) 0, 2+i, (short) 1));
       //sheet1.addMergedRegion(new Region(3+i, (short) 0, 3+i, (short) 1));
       /******************************************************************/

       c = row_repeat[i].createCell((short) 1);
       c.setCellStyle(cellStyle2);// 单元格的样式

       c = row_repeat[i].createCell((short) 2);
       c.setCellStyle(cellStyle2);// 单元格的样式
       c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
       c.setCellValue("40");// 单元格值
      }

      c = row_repeat[i].createCell((short) (3+j));
      c.setCellStyle(cellStyle2);// 单元格的样式
      c.setCellType(HSSFCell.CELL_TYPE_NUMERIC);//数字型
      c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码

      c.setCellValue(Double.parseDouble(map.get(sysUser).toString()));// 单元格值
      i++;
     }

     j++;
    }
   }

   // 在表单中新建3行
   /************************************************/
   HSSFRow row3 = sheet1.createRow((short) (2+rows));
   //HSSFRow row3 = sheet1.createRow((short) (3+rows));
   /************************************************/
   row3.setHeight((short) 400);

   c = row3.createCell((short) 0);
   c.setCellStyle(cellStyle2);// 单元格的样式
   c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
   c.setCellValue(scoreSet.getScoreModel().getScoremodelname() + " 评分");// 单元格值
   /******************************************************************************/
   //sheet1.addMergedRegion(new Region((3+rows), (short) 0,(3+rows), (short) 1));
   sheet1.addMergedRegion(new Region((2+rows), (short) 0,(2+rows), (short) 1));
   /******************************************************************************/

c = row3.createCell((short) 1);
c.setCellStyle(cellStyle2);// 单元格的样式

   c = row3.createCell((short) 2);
   c.setCellStyle(cellStyle2);// 单元格的样式
   c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
   c.setCellValue("40");// 单元格值

for (int i = 0; i < list.size(); i++) {

sheet1.setColumnWidth((short) (i + 3), (short) 5000);

    ScoreRecordDetail o = list.get(i);
    String name = "";
    if (o.getDevelopid() != null) {
     BasDevelop basDevelop = (BasDevelop) session.createQuery("from BasDevelop where developid = :developid")
       .setLong("developid", o.getDevelopid()).uniqueResult();
     name = basDevelop.getDename();
    } else {
     ProductType productType = (ProductType) session.createQuery("from ProductType where productid = :productid")
       .setLong("productid", o.getProductid()).uniqueResult();
     name = productType.getProdname();
    }
/****************************************************************************/
    //c = row1.createCell((short) (i + 3));
    //c.setCellStyle(cellStyle1);// 单元格的样式
/****************************************************************************/

    c = row2.createCell((short) (i + 3));
    c.setCellStyle(cellStyle2);// 单元格的样式
    c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
    c.setCellValue(name);// 单元格值

    c = row3.createCell((short) (i + 3));
    c.setCellStyle(cellStyle2);// 单元格的样式
    c.setEncoding(HSSFCell.ENCODING_UTF_16);// 编码
    c.setCellType(HSSFCell.CELL_TYPE_NUMERIC);//数字型
    c.setCellValue(o.getScore());// 单元格值
   }

// 输出Excel文件
errorOrExportExcel(response, wb, 2 ,outFileName);

  } catch (Exception e) {
   e.printStackTrace();
  }
  return false;
}
//结束
/***************************************************************************************************************/
}

weesun一米阳光 2009-02-22 19:27 发表评论

点击表头排序[整理总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:25:00 GMT

【1】这个非常好用，

在之间加入

【2】

要排序的表中要加入 id="table-1"

【3】

点击的表头之间加入

剩下的之间加入

【4】

String	String	Number	Date	No Sort
apple	Strawberry	45	2001-03-13	Item 0
Banana	orange	7698	1789-07-14	Item 1
orange	Banana	4546	1949-07-04	Item 2

代码下载http://www.blogjava.net/Files/1504/sorts.rar

weesun一米阳光 2009-02-22 19:25 发表评论

JAVA四舍五入(小数点后保留两位数字)[自己总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:23:00 GMT

public String getFourToFive(double score_type)
{
  double bl=(Math.round(score_type/.01)*.01);
  String st=String.valueOf(bl);
/**注意,这里用.作为分隔符是失效的,不知道为什么,所以采用替换的办法*/
  st=st.replace(".", "_");
  String []st_arr=st.split("_");
  String temp="";
  if(st_arr[1].length()>2)
  {
   temp=st_arr[1].substring(0, 2);
  }
  else
  if(st_arr[1].length()<2)
  {
   temp=st_arr[1]+"0";
  }
  else
  {
   temp=st_arr[1];
  }
  return st_arr[0]+"."+temp;
}

weesun一米阳光 2009-02-22 19:23 发表评论

实际项目中用到的工厂模式[自己总结]

weesun一米阳光 — Sun, 22 Feb 2009 11:22:00 GMT

1.ExcelManagerFactory
package com.factory;

public class ExcelManagerFactory {
   private static String key = "key";
   private ExcelManagerFactory() {
   }

   private static ExcelManagerIf instance = null;
   public static ExcelManagerIf getInstance(){
    if(instance == null){
             synchronized(key){
                 if(instance == null){
                     instance = new ExcelManagerImpl();
                 }
             }
         }
         return instance;
   }
}

2.声明一个接口

package com.factory;

import java.io.InputStream;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;

import javax.servlet.http.HttpServletResponse;

import com.gpdi.orm.object.ScoreRecordDetail;

public interface ExcelManagerIf {

public boolean export(HttpServletResponse response, List list,LinkedHashMap hashMap);
/********************************************************************************************************/
public boolean export1(HttpServletResponse response,List list,LinkedHashMap hashMap);
/********************************************************************************************************/

}
3.实现接口的类

package com.factory;

import java.io.IOException;

public class ExcelManagerImpl implements ExcelManagerIf
{
         public boolean export1(HttpServletResponse response, List list,LinkedHashMap hashMap)
         {
                    //实现具体功能的代码实现
         }
}
4.调用
HttpServletResponse response=null;
LinkedHashMap hm = new LinkedHashMap();
List list = Object.getList();
   ExcelManagerIf eem = ExcelManagerFactory.getInstance();
   /******************************************************************/
   eem.export(response, list,hm);

weesun一米阳光 2009-02-22 19:22 发表评论

Collection-用几行代码实现排序[转]

weesun一米阳光 — Sun, 22 Feb 2009 11:20:00 GMT

摘要: 转自:http://www.wujianrong.com/archives/2006/07/post_280.html 摘要：经常看见有人还在不厌其烦的用冒泡（最常见！）或是交换做排序，实际上用几行代码就可以既快又好地实现排序，不论是简单类型还是类，数组还是Java聚集(Collection)。简单类型的排序简单类型不外是byte, char, short, int, lon... 阅读全文

weesun一米阳光 2009-02-22 19:20 发表评论

Apache+Tomcat负载均衡集群【整理备用】

weesun一米阳光 — Sun, 22 Feb 2009 11:20:00 GMT

因为很多项目中会用到Apache+Tomcat负载均衡和集群，最近研究了一下，将心得留下，以备后用。
/Files/1504/apache_tomcat.rar

2010-03-28重新整理

weesun一米阳光 2009-02-22 19:20 发表评论

Hibernate多对多双向关联映射【转帖】

weesun一米阳光 — Sun, 22 Feb 2009 11:17:00 GMT

转自：http://blog.csdn.net/thinkGhoster/archive/2007/10/24/1841584.aspx
Hibernate多对多双向关联映射

1、数据库结构

category表：{ categoryId , categoryName }

item表：{ itemId , itemName }

category_item表：{ idCategory , idItem}

2、Category.hbm.xml

<hibernate-mapping>
    <class name="com.persistent.Category" table="category">
        <id name="id" column="categoryId" unsaved-value="null">
            <generator class="increment">generator>
        id>
        <property name="name" column="categoryName">property>
        <set name="items" table="category_item" cascade="all" lazy="false">
            <key column="idCategory">key>
            <many-to-many class="com.persistent.Item" column="idItem">many-to-many>
        set>
    class>
hibernate-mapping>

3、Item.hbm.xml

<hibernate-mapping>
    <class name="com.persistent.Item" table="item">
        <id name="id" column="itemId" unsaved-value="null">
            <generator class="increment">generator>
        id>
        <property name="name" column="itemName">property>
        <set name="categories" table="category_item" lazy="false" inverse="true">
            <key column="idItem">key>
            <many-to-many class="com.persistent.Category" column="idCategory">many-to-many>
        set>
    class>
hibernate-mapping>

4、Category.java和Item.java

public class Category {
private Long id;
    private String name;
private Set items = new HashSet();
...
}

public class Item {
private Long id;
private String name;
private Set categories = new HashSet();
...
}

映射文件中还可以不用set而用bag，只要把set出现的地方改成bag就行，这样相应的category.java和Item.java

文件当中就可以用List。

weesun一米阳光 2009-02-22 19:17 发表评论

getOutputStream() has already been called for this response的解决【自己总结】

weesun一米阳光 — Sun, 22 Feb 2009 11:17:00 GMT

1.在项目中JSP页面输出流显示为图片时，刷新时，报以下错误
getOutputStream() has already been called for this response
index.jsp

show.jsp
<%@ page contentType="text/html; charset=gbk" %>
<%@ page import="java.io.*"%>
<%@ page import="cn.com.hnisi.visio.image.*"%>
<%
VisioDemo v=new VisioDemo();
v.setVisible(false);
try
{
byte[] image = v.getVisio().createPreview(new File("E:/test/test.vsd"));
response.setContentType("image/jpeg");
OutputStream outs = response.getOutputStream();
outs.write(image);
outs.flush();

}
catch(Exception e)
{
    System.out.println(e.getMessage());
}
%>
出现错误原因是response的数据流没有释放
解决办法
<%@ page contentType="text/html; charset=gbk" %>
<%@ page import="java.io.*"%>
<%@ page import="cn.com.hnisi.visio.image.*"%>
<%
VisioDemo v=new VisioDemo();
v.setVisible(false);
try
{
byte[] image = v.getVisio().createPreview(new File("E:/test/test.vsd"));
response.setContentType("image/jpeg");
OutputStream outs = response.getOutputStream();
outs.write(image);
outs.flush();
outs=null;
    response.flushBuffer();
    out.clear();
    out = pageContext.pushBody();
}
catch(Exception e)
{
    System.out.println(e.getMessage());
}
%>

weesun一米阳光 2009-02-22 19:17 发表评论

使用display，关于取出列值

weesun一米阳光 — Sun, 22 Feb 2009 11:16:00 GMT

通过   可以实现取出列值。注意：#attr为必须，row为的属性id的值。

weesun一米阳光 2009-02-22 19:16 发表评论