亂碼處理思路：
1.在struts.xml文件中添加
<constant name="struts.i18n.encoding" value="UTF-8"></constant>
2.在jsp頁面中編碼設置成 UTF-8
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
3.添加過濾器，在過濾器中添加編碼設置
public void doFilter(ServletRequest arg0, ServletResponse arg1,FilterChain arg2)throws IOException, ServletException {
arg0.setCharacterEncoding("utf-8");
arg2.doFilter(arg0, arg1);
}
具體實現如下：
頁面：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<title>My JSP 'login.jsp' starting page</title>
</head>
<body>
<s:form action="result.action" method="post">
<s:textfield name="name" label="姓名"></s:textfield>
<s:password name="password" label="密碼"></s:password>
<s:submit value="提交"></s:submit>
</s:form>
</body>
</html>
Action類：
package com.accp.struts2.chapter6;
import com.opensymphony.xwork2.ActionSupport;
public class ResultAction extends ActionSupport {
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;
}
@Override
public String execute() throws Exception {
System.out.println(name+"\t"+password);
return SUCCESS;
}
}
過濾器：
package com.accp.struts2.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public class EncodingFilter implements Filter {
public void destroy() {
// TODO Auto-generated method stub
}
public void doFilter(ServletRequest arg0, ServletResponse arg1,
FilterChain arg2) throws IOException, ServletException {
// TODO Auto-generated method stub
arg0.setCharacterEncoding("utf-8");
arg2.doFilter(arg0, arg1);
}
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
}
}
結果顯示頁面：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<title>My JSP 'login.jsp' starting page</title>
</head>
<body>
${name}<br>
${password}
</body>
</html>
配置文件：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.i18n.encoding" value="UTF-8"></constant>
<package name="default_result" namespace="/" extends="struts-default">
<action name="result" class="com.accp.struts2.chapter6.ResultAction">
<result name="success">/chapter6/result_success.jsp</result>
</action>
</package>
</struts>
web.xml文件：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>com.accp.struts2.filter.EncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<login-config>
<auth-method>BASIC</auth-method>
</login-config>
</web-app>
注意，編碼過濾器必須放在struts過濾器之前