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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�?
动态Form �l�承�c?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�q�行报错 �Q?

java.lang.IllegalArgumentException: Resources cannot be null.

可能的原因是因�ؓ(f��)在struts-config.xml文�g中没有�ؓ(f��)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

心情 — Wed, 10 Feb 2010 01:45:00 GMT

配置�q��o(h��)�?讄��字符集�ؓ(f��)GBK �Q�注�Q�mysql数据库和JSP��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�g 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�?JSP��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��?br />
ActonForm表单中对应的属�?�Q�日期格式）格式为java.sql.Date �q�且JSP��面中输入的数据需要�ؓ(f��)yyyy-MM-dd格式�?br /> 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：(x��)TimeStamp列的昄��格式与DateTime列相�?格式为yyyy-MM-dd hh:mm:ss�?

不同点：(x��)DateTime支持的范围�ؓ(f��)'1000-01-01 00:00:00'�?9999-12-31 23:59:59'
TimeStamp��g��能早�?970或晚�?037

心情 2010-02-10 01:04 发表评论

心情 — Tue, 09 Feb 2010 16:52:00 GMT

�~�辑mysql的配�|�文件my.ini,讄��字符集�ؓ(f��)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�?�Q�数据库和表均��用默认的字符�?
在Servlet中�{换字�W�编�?/li>

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

讄��JSP��面字符集�ؓ(f��)GBK

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

心情 2010-02-10 00:52 发表评论