struts2与ajax交互

  
  function
if(value!=""){  
"get","check?usersName="+value,deal,null);  
  }  
 }

  
  
  
   
  
      
用户名：
      

"text" name="usersName" nblur="checkUsersName(this.value)"/>
"check">这里显示检测结果信息
      
  
      
  
      
  
       

"submit" value="注册"/>
       
       

"rese服务器托管网t" value="重置"/>
        
     
  
   
  
  

public String checkUserName()
  {
HttpServletResponse response=ServletActionContext.getResponse();
   response.setCont服务器托管网entType("text/html");
   response.setCharacterEncoding("utf-8");
   PrintWriter out = null;
   try {
out=response.getWriter();
   } catch (IOException e1) {
    // TODO Auto-generated catch block
    e1.printStackTrace();
   }
   String name="";
   try {
//页面传递usersName过来，这里涉及到中文转码
 name=java.net.URLDecoder.decode(usersName,"UTF-8");
   } catch (UnsupportedEncodingException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
//存在返回1，否则返回0
if(rs.checkUserExit(name)!=null) // 进行数据库校验
    { 
      exit="1";
      out.print(exit);
      out.flush();
      out.close();
      System.out.println(exit);
    } 
  
  return null;}

  
register.jsp