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SSH+Android之Struts

日期：2017/3/1 10:37:48 编辑：Linux編程

使用json數據交互信息

首先搭配SSH服務端，目前只用了Struts2,首先導入包，下面是需要的包

web.xml的代碼

[html]

<?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>

struts.xml代碼

[html]

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="as" extends="json-default">
<action name="login" class="as.action.LoginAction" method="login">
<result type="json" ></result>
</action>
</package>
</struts>

項目的結構

LoginAction.java代碼

[java]

package as.action;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import net.sf.json.JSONObject;
import as.model.User;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
public class LoginAction extends ActionSupport implements ServletResponseAware ,ServletRequestAware,ModelDriven<User>{
private User user;
private HttpServletResponse response;
private HttpServletRequest request;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public void setServletResponse(HttpServletResponse arg0) {
// TODO Auto-generated method stub
this.response = arg0;
}
public void setServletRequest(HttpServletRequest arg0) {
// TODO Auto-generated method stub
this.request=arg0;
}
public void login() {
try {
// TODO Auto-generated method stub
this.response.setContentType("text/html;charset=utf-8");
this.response.setCharacterEncoding("UTF-8");
JSONObject json=new JSONObject();
Map map=new HashMap<Object, String>();
map.put("name", user.getName());
map.put("pwd", user.getPwd());
json.put("LoginInfo", map);
response.getWriter().write(json.toString());
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
public User getModel() {
// TODO Auto-generated method stub
if (user==null) {
return user=new User();
}
return user;
}
}

User.java

[java]

package as.model;
public class User {
private String name;
private String pwd;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
}

view層 index.jsp 代碼

[html]

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<center>
<form action="login" method="post">
用戶名: <input type="text" name="name"><br>
密碼: <input type="password" name="pwd"><br>
<input type="submit" value="登陸" name="submit"> <input type="reset" value="取消" name="reset">
</form>
</center>
</body>
</html>
測試用戶名:2222 密碼：1111