扎心了，老铁~这依然是一个注册。
1、reg.jsp
<%@page contentType="text/html; charset=utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>新用户注册</title>
<script src="js/jquery-1.8.1.js"></script>
<script>
$(function(){
$("#account").blur(function(){
$.ajax({
url:"userManager_checkUserIsRegist", //请求的URL路径
type: "post", //请求方法
data:"account="+$("#account").val(),//获取文本框输入的文本值
dataType:"json",//返回json的数据格式
success:function(data){//操作成功后执行的回调函数
//alert(data);
//循环遍历data集合
//{"errorMsg":"对不起该账号已经被注册"}
$.each(data, function (key, value) {
alert(value);
});
}
});
});
});
</script>
</head>
<body>
<form action="userManager_checkUserIsRegist">
用户帐号:<input name="textfield" type="text" id="account" name="account"/>
用户密码:<input name="textfield" type="text" />
</form>
</body>
</html>
2、UserManagerAction.java
package com.cn.action;
public class UserManagerAction {
private String account;
private String errorMsg;
public String checkUserIsRegist(){
String[] registAccount={"aa","bb","cc","dd"};
for(String act:registAccount){
if(act.equals(account)){
errorMsg="对不起该账号已经被注册";
break;
}else{
errorMsg="恭喜您该账号可以使用";
}
}
return "regist";
}
public String getAccount(){
return account;
}
public void setAccount(String account){
this.account=account;
}
public String getErrorMsg() {
return errorMsg;
}
}
3、struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.enable.DynamicMethodInvocation" value="true"/>
<package name="jsonPlugin" namespace="/" extends="json-default">
<action name="userManager_*" class="com.cn.action.UserManagerAction" method="{1}">
<!--返回类型必须为json-->
<result type="json" name="regist">
<!--Action中哪些属性需要转换成JSON数据格式-->
<param name="includeProperties">errorMsg</param>
</result>
</action>
</package>
<package name="jfreechartPlugin" namespace="/" extends="jfreechart-default">
<action name="jFreeChart_*" class="com.cn.action.JFreeChartAction" method="{1}">
<result name="success" type="chart">
<!--定义JFreeChart报表的大小-->
<param name="width">800</param>
<param name="height">600</param>
</result>
</action>
</package>
</struts>
4、web.xml
<?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">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<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>
</web-app>
时间： 2024-08-19 00:28:16