BlogJava-Eric Choi-随笔分类-Java

SSH整合过程

Solo.E.Ch — Thu, 30 Sep 2010 12:12:00 GMT

摘要: 一、导包 1、struts2 commons-logging-1.1.jar freemarker-2.3.8.jar ognl-2.6.11.jar struts2-core-2.0.8.ja... 阅读全文

Solo.E.Ch 2010-09-30 20:12 发表评论

Spring 学习过程

Solo.E.Ch — Thu, 30 Sep 2010 12:05:00 GMT

1,建立web project导包

Spring的版本：3.0.3
需要的包：
org.springframework.asm-3.0.3.RELEASE.jar
org.springframework.beans-3.0.3.RELEASE.jar
org.springframework.context-3.0.3.RELEASE.jar
org.springframework.core-3.0.3.RELEASE.jar
org.springframework.exception-3.0.3.RELEASE.jar
org.springframework.web-3.0.3.RELEASE.jar
org.springframework.web.servlet-3.0.3.RELEASE.jar
commons-fileupload-1.2.1.jar //这个在struts2里找的
commons-logging-1.1.1.jar

2，建立vo ，setter getter

User.java

package com.cscw.spring.test;

public class User {
    private String name;

    private String password;

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
}

3.根目录建立applicationContext.xml，内容可在doc找

applicationContext.xml

xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

  <bean id="user" class="com.cscw.spring.test.User">  //类路径

  bean>

4.测试代码Test.java

Test.java

package com.cscw.spring.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        // TODO Auto-generated method stub
            ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
            User user = (User)ctx.getBean("user");
            user.setName("yse");
            user.setPassword("password");
            System.out.println(""+user.getName()+user.getPassword());
    }
}

Solo.E.Ch 2010-09-30 20:05 发表评论

Hibernate 学习过程

Solo.E.Ch — Thu, 30 Sep 2010 12:03:00 GMT

1、简单例子

hibernate.cfg.xml

xml version='1.0' encoding='UTF-8'?>
DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

<session-factory>
   <property name="connection.username">rootproperty>
   <property name="connection.url">jdbc:mysql://localhost:3306/testproperty>
   <property name="dialect">org.hibernate.dialect.MySQLDialectproperty>
   <property name="myeclipse.connection.profile">MySqlproperty>
   <property name="connection.password">rootproperty>
   <property name="connection.driver_class">com.mysql.jdbc.Driverproperty>
   <property name="show_sql">trueproperty>
   <property name="transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactoryproperty>
   <property name="cache.provider_class">org.hibernate.cache.NoCacheProviderproperty>
   <mapping resource="com/study/hibernate/Person.hbm.xml" />

session-factory>

hibernate-configuration>

Person.hbm.xml//与数据库进行字段映射、也可用Annotation

xml version="1.0"?>
DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
<class name="com.study.hibernate.Person" table="person"
   catalog="test">
   <id name="id" type="java.lang.String">
    <column name="id" length="32" />
    <generator class="assigned" />
   id>
   <property name="name" type="java.lang.String">
    <column name="name" length="20" not-null="true" />
   property>
   <property name="password" type="java.lang.String">
    <column name="password" length="20" not-null="true" />
   property>
   <property name="sex" type="java.lang.String">
    <column name="sex" length="2" />
   property>
   <property name="email" type="java.lang.String">
    <column name="email" length="30" />
   property>
class>
hibernate-mapping>

POJO类

package com.study.hibernate;

public class Person {
private String id;

private String name;

private String password;

private String sex;

private String email;

public String getEmail() {
   return email;
}

public void setEmail(String email) {
   this.email = email;
}

public String getId() {
   return id;
}

public void setId(String id) {
   this.id = id;
}

public String getName() {
   return name;
}

public void setName(String name) {
   this.name = name;
}

public String getPassword() {
   return password;
}

public void setPassword(String password) {
   this.password = password;
}

public String getSex() {
   return sex;
}

public void setSex(String sex) {
   this.sex = sex;
}

}

操作类

package com.study.hibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

public class PersonOperate {
private Session session = null;

public PersonOperate(){
   Configuration config = new Configuration().configure();

   SessionFactory factory = config.buildSessionFactory();

   this.session = factory.openSession();
}
public void insert(Person p){
   Transaction trc = this.session.beginTransaction();
   this.session.save(p);
   trc.commit();
}

}

测试类

package com.study.hibernate;

public class TestPO {
public static void main(String[] args) {
   // TODO Auto-generated method stub
   Person p = new Person();
   p.setId("san");
   p.setName("he");
   p.setPassword("yong");
   p.setSex("男");
   p.setEmail("hao123@126.com");

   PersonOperate po = new PersonOperate();
   po.insert(p);

}

}

只是配置简单例子的话还是蛮简单的，未完待续……

Solo.E.Ch 2010-09-30 20:03 发表评论

strut2 学习过程

Solo.E.Ch — Thu, 30 Sep 2010 11:53:00 GMT

一、Struts2.0的配置，主要分三个步骤：(先快速配置一个简单例子)

   1 首先加载Struts2.0所需的jar包。在WEB-INF文件夹下创建一个lib文件夹主要放的jar为
      commons-logging-1.1.jar
      freemarker-2.3.8.jar
      ognl-2.6.11.jar
      struts2-core-2.0.8.jar
      xwork-2.0.3.jar
      commons-fileupload-1.2.1.jar

   2 配置web.xml文件。

WEB-INF文件夹里面有个web.xml，新加“filter”和“filter-mapping” 节点。web.xml配置如下：

<filter>
  <filter-name>struts2filter-name>
  <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilterfilter-class>
filter>

<filter-mapping>
  <filter-name>struts2filter-name>
  <url-pattern>/*

在这里我们需要定义filter的名字，我定义的是叫struts2

3 配置struts.xml文件。

最后一步在我们的src源文件里，需要加一个struts.xml，记住这里要和com包在同级目录下，内容如下：

DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="com" extends="struts-default">

        <action name="HelloWorld" class="com.HelloWorld">
            <result>/HelloWorld.jspresult>
        action>
        —这里是我添加的一个action -->

    package>
struts>

struts2.0就算配置完成了，下我来说说我是怎么使用他的。

简单的HelloWorld跳转实例

首先我们需要有一个jsp页面“HelloWorld.jsp”，代码如下：

<%@taglib prefix="s" uri="/struts-tags"%>
<html>
    <head>
        <title>Hello World!title>
    head>
    <body>
        <h2><s:property value="message" />h2>
    body>
html>

我们可以看到这里我们看到如果是运行起来的话，页面里面应该显示message的值。

我们还需要一个HelloWorld.java类，代码如下：

package com;
import com.opensymphony.xwork2.ActionSupport;
public class HelloWorld extends ActionSupport {
    public static final String MESSAGE = "Struts is up and running ";
    public String execute() throws Exception {
        setMessage(MESSAGE);
        return SUCCESS;
    }
    private String message;
    public void setMessage(String message) {
        this.message = message;
    }
    public String getMessage() {
        return message;
    }
}

代码很简单主要就是给message赋“Struts is up and running”值，千万别忘了需要继承ActionSupport类即可。

二、action的学习

1)方法调用：
   理论上Struts 2.0的Action无须实现任何接口或继承任何类型，但是，我们为了方便实现Action，大多数情况下都会继承com.opensymphony.xwork2.ActionSupport类，并重载（Override）此类里的String execute()方法。此为默认的调用方法。若要自定义调用方法，有三种方法：
     1.method单一方法，每一个action配一个方法
     2.DMI(动态调用)用action!method
     3.通配符*_*，大幅度减少配置量 action_method

2）接收参数：
   1.属性接收
例子：

Login.java

import com.opensymphony.xwork2.ActionSupport;

publicclass Login extends ActionSupport {
    private String name;
    private String password;
    private String message;

    public String getName() {
        return name;
    }

    publicvoid setName(String name) {
        this.name = name;
    }

    public String getPassword() {
        return password;
    }

    publicvoid setPassword(String password) {
        this.password = password;
    }

    public String getMessage() {
        return message;
    }

    @Override
    public String execute() {
        if("max".equals(name) &&"Secret".equals(password)) {
            message ="Welcome, "+ name;
        }else{
            message ="Invalid user or password";
        }
        return SUCCESS;
    }
}

<%@ page contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
    <title>Logintitle>
head>
<body>
<s:form action="Login" method="POST">
    <s:textfield name="name" label="User name"/>
    <s:password name="password" label="Password"/>
    <s:submit value="Submit"/>
s:form>
body>
html>

2.domain接收，更高级的POJO访问路径问题,将name和password从Login类中分离出来，到新建类User中

LoginX.java

import com.opensymphony.xwork2.ActionSupport;

publicclass LoginX extends ActionSupport {
    private User user;
    private String message;

    publicvoid setUser(User user) {
        this.user = user;
    }

    public User getUser() {
        return user;
    }

    public String getMessage() {
        return message;
    }

    @Override
    public String execute() {
        if("max".equals(user.getName()) &&"secret".equals(user.getPassword())) {
            message ="Welcome, "+ user.getName();
        }else{
            message ="Invalid user or password";
        }
        return SUCCESS;
    }
}

<%@ page contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
    <title>Logintitle>
head>
<body>
<s:form action="LoginX" method="POST">
    <s:textfield name="user.name" label="User name"/>
    <s:password name="user.password" label="Password"/>
    <s:submit value="Submit"/>
s:form>
body>
html>

(setter、getter要大写首字母如setName，之前因为这个老不成功，还不知道为什么)
三、完成页面框架的部署

article_add.jsp

article_addInput.jsp

article_delete.jsp

article_update.jsp

article_updateInput.jsp

article_list.jsp
如此命名可方便通配符配置，减少配置量。

四、CRUD

与之前完成的DAO模式代码切合，即Service
底层代码没什么变化，struts2取代了jsp使页面清洁了。

五、标签

目前才开始用到了



以及





未完待续、以后学的继续添加～

Solo.E.Ch 2010-09-30 19:53 发表评论