Ajax用法

JavaScript代码

$.ajax({

              type:"post",//相对于form的method

              url:"ajaxAction.action",//传送到的Action或URL地址

              async:true, //

              data: {"time":time},//如果要传递多个参数{”param1”:param1,”param2”:param2,”param3”:param3}

              dataType:"text",//

              success:function(data) {//获取返回值

                document.getElementById("content").value=data; //你需要进行的业务逻辑操作

              },

              error:function(e) {

                alert("验证失败!");

               

              }

            });

 

Struts.xml配置文件

<actionname="ajaxAction" class="myAction" method="ajaxAction"></action><!—-不设置返回值 -->
 

 

Action.java方法

private ServletRequestrequest=ServletActionContext.getRequest();
private HttpServletResponseresponse = ServletActionContext.getResponse();

publicvoid ajaxTheNOCheck()throws Exception{

       try{
         String Message="返回字符串";
          response.setCharacterEncoding("utf-8");//设置编码格式
          PrintWriter writer =response.getWriter();
         writer.write(Message); //写入Message，返回值为Message里的值
          writer.close();
       }catch (Exception e) {
         e.printStackTrace();
         log.error("程序异常：", e);
         throw new Exception(e);
       }

    }