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org.apache.struts.validator.DynaValidatorForm

心情 — Wed, 10 Feb 2010 10:36:00 GMT

使用动态验证框架
动态Form 继承类 org.apache.struts.validator.DynaValidatorForm

<form-beans>
        <form-bean name="loginForm"
            type="org.apache.struts.validator.DynaValidatorForm">
            <form-property name="account" type="java.lang.String" />
            <form-property name="password" type="java.lang.String" />
        form-bean>

    form-beans>

如果运行报错：

java.lang.IllegalArgumentException: Resources cannot be null.

可能的原因是因为在struts-config.xml文件中没有为验证框架注册

<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
        <set-property property="pathnames"
            value="/WEB-INF/validator-rules.xml,/WEB-INF/validator.xml" />
    plug-in>

心情 2010-02-10 18:36 发表评论

struts1 JSP页面表单向MYSQL数据库提交汉字的字符串出现乱码的情况解决办法

心情 — Wed, 10 Feb 2010 01:45:00 GMT

配置过滤器设置字符集为GBK （注：mysql数据库和JSP页面都是使用GBK字符集）
CharFilterToGBK javax.servlet.Filter;

public class CharFilterToGBK implements Filter {

public void destroy() {
  // TODO Auto-generated method stub

}

public void doFilter(ServletRequest request, ServletResponse response,
   FilterChain filterChain) throws IOException, ServletException {
  request.setCharacterEncoding("GBK");
  response.setCharacterEncoding("GBK");
  filterChain.doFilter(request, response);
}

配置web.xml文件注册该过滤器

<filter>
  <filter-name>charFilterToGBKfilter-name>
  <filter-class>study.filter.CharFilterToGBKfilter-class>
filter>
<filter-mapping>
     <filter-name>charFilterToGBKfilter-name>
     <url-pattern>/*url-pattern>
filter-mapping>

心情 2010-02-10 09:45 发表评论

struts1 中ActionForm表单中日期格式的初期 java.sql.Date

心情 — Wed, 10 Feb 2010 01:10:00 GMT

在struts1.x框架中 JSP页面向一个ActionForm提交表单内容对于提交一个日期类型的数据的注意事项

ActonForm表单中对应的属性（日期格式）格式为java.sql.Date 并且JSP页面中输入的数据需要为yyyy-MM-dd格式。
此种方式不能够录入时分秒

心情 2010-02-10 09:10 发表评论

mysql数据库DateTime与TimeStamp比较

心情 — Tue, 09 Feb 2010 17:04:00 GMT

相同点：TimeStamp列的显示格式与DateTime列相同,格式为yyyy-MM-dd hh:mm:ss。

不同点：DateTime支持的范围为'1000-01-01 00:00:00'到'9999-12-31 23:59:59'
TimeStamp值不能早于1970或晚于2037

心情 2010-02-10 01:04 发表评论

mysql 中文乱码中文读写错误问题的解决办法

心情 — Tue, 09 Feb 2010 16:52:00 GMT

编辑mysql的配置文件my.ini,设置字符集为gbk

[client]

port=3306

[mysql]

default-character-set=gbk
# SERVER SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by the MySQL Server. Make sure that
# you have installed the server correctly (see above) so it reads this
# file.
#
[mysqld]

# The TCP/IP Port the MySQL Server will listen on
port=3306

#Path to installation directory. All paths are usually resolved relative to this.
basedir="D:/Program Files/MySQL/MySQL Server 5.1/"

#Path to the database root
datadir="D:/Program Files/MySQL/MySQL Server 5.1/Application Data/Data/"

# The default character set that will be used when a new schema or table is
# created and no character set is defined
default-character-set=gbk

# The default storage engine that will be used when create new tables when
default-storage-engine=INNODB

使用MySQL Workbench设计数据库，数据库和表均使用默认的字符集
在Servlet中转换字符编码

String name = request.getParameter("name");
name = new String(name.getBytes("ISO-8859-1"));

设置JSP页面字符集为GBK

<%@ page language="java" pageEncoding="GBK"%>

心情 2010-02-10 00:52 发表评论