ajax提交到java后台之后处理数据的实现

环境：eclipse+struts

要实现的效果：点击按钮提交数据到后台之后回到前台显示出来数据

index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" 
  pageEncoding="UTF-8"%> 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 struts.xml

 
  index.jsp 
 

Test.java

package com.action; 
 
import java.io.PrintWriter; 
import java.util.Map; 
 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
 
import org.apache.struts2.ServletActionContext; 
 
import com.opensymphony.xwork2.ActionContext; 
import com.opensymphony.xwork2.ActionSupport; 
 
public class Test extends ActionSupport { 
  @Override 
  public String execute() throws Exception { 
    // TODO Auto-generated method stub 
    HttpServletRequest request = org.apache.struts2.ServletActionContext.getRequest(); 
    HttpServletResponse response = ServletActionContext.getResponse(); 
    request.setCharacterEncoding("utf-8"); 
    response.setCharacterEncoding("utf-8"); 
    PrintWriter out = response.getWriter(); 
    out.write(request.getParameter("username")); 
    out.flush(); 
    out.close(); 
    return SUCCESS; 
  } 
} 

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