Spring MVC和AJAX异步交互实例

雨点打透心脏的1/2处 2022-06-16 08:39 161阅读 0赞

[spring][] MVC 异步交互demo：

原文地址：http://blog.csdn.net/zhujianli1314/article/details/43193183

1.jsp页面：

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1.  <%@ page language="java" contentType="text/html; charset=utf-8"  
2.      pageEncoding="utf-8"%>  
3.  <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  
4.  <html>  
5.  <head>  
6.  <script type="text/javascript" src="js/jquery-2.1.3.js"></script>  
7.  <script type="text/javascript" src="js/jquery-2.1.3.min.js"></script>  
8.  <meta http-equiv="Content-Type" content="text/html; charset=utf8">  
9.  <title>Insert title here</title>  
10. <script type="text/javascript">  
11.     function ajaxTest()\{  
12.         $.ajax(\{  
13.         data:"name="\+$("\#name").val(),  
14.         type:"GET",  
15.         dataType: 'json',  
16.         url:"user/login.do",  
17.         error:function(data)\{  
18.             alert("出错了！！:"\+data.msg);  
19.         \},  
20.         success:function(data)\{  
21.             alert("success:"\+data.msg);  
22.             $("\#result").html(data.msg) ;  
23.         \}  
24.         \});  
25.     \}  
26. </script>  
27. </head>  
28. <body>  
29.     <input type="text" name="name" id="name"/>  
30.     <input type="submit" value="登录" οnclick="ajaxTest();"/>  
31.     <div id="result"></div>  
32. </body>  
33. </html>

2.controller：

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1.  package xm.zjl.controller;  
2.    
3.  import java.io.IOException;  
4.  import java.util.HashMap;  
5.  import java.util.Map;  
6.    
7.  import javax.servlet.http.HttpServletRequest;  
8.  import javax.servlet.http.HttpServletResponse;  
9.    
10. import org.springframework.stereotype.Controller;  
11. import org.springframework.web.bind.annotation.RequestMapping;  
12. import org.springframework.web.bind.annotation.ResponseBody;  
13.   
14. /\*\* 
15.  \* 登录controller 
16.  \*  
17.  \* @author Administrator 
18.  \* 
19.  \*/  
20. @Controller  
21. @RequestMapping("/user/\*")  
22. public class LoginController \{  
23.     @RequestMapping(value="login.do")  
24.     public @ResponseBody Map<String,Object> login(HttpServletRequest request,HttpServletResponse response) throws IOException\{  
25.         System.out.println(request.getParameter("name"));  
26.         Map<String,Object> map = new HashMap<String,Object>();  
27.           
28.         if(request.getParameter("name").equals("123"))\{  
29.             System.out.println("城东");  
30.             map.put("msg", "成功");  
31.         \}else\{  
32.             System.out.println("失败");  
33.             map.put("msg", "失败");  
34.         \}  
35.         return map;  
36.     \}  
37.       
38. \}

3.pom文件：

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1.  <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
2.      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4\_0\_0.xsd">  
3.      <modelVersion>4.0.0</modelVersion>  
4.      <groupId>xiaoma</groupId>  
5.      <artifactId>zjl</artifactId>  
6.      <packaging>war</packaging>  
7.      <version>0.0.1\-SNAPSHOT</version>  
8.      <name>zjl Maven Webapp</name>  
9.      <url>http://maven.apache.org</url>  
10.     <dependencies>  
11.         <dependency>  
12.             <groupId>junit</groupId>  
13.             <artifactId>junit</artifactId>  
14.             <version>3.8.1</version>  
15.             <scope>test</scope>  
16.         </dependency>  
17.         <dependency>  
18.             <groupId>org.springframework</groupId>  
19.             <artifactId>spring-webmvc</artifactId>  
20.             <version>4.1.0.RELEASE</version>  
21.         </dependency>  
22.         <dependency>  
23.             <groupId>org.springframework</groupId>  
24.             <artifactId>spring-web</artifactId>  
25.             <version>4.1.0.RELEASE</version>  
26.         </dependency>  
27.         <dependency>  
28.             <groupId>com.fasterxml.jackson.core</groupId>  
29.             <artifactId>jackson-databind</artifactId>  
30.             <version>2.5.0</version>  
31.         </dependency>  
32.         <dependency>  
33.             <groupId>commons-beanutils</groupId>  
34.             <artifactId>commons-beanutils</artifactId>  
35.             <version>1.9.2</version>  
36.         </dependency>  
37.         <dependency>  
38.             <groupId>org.codehaus.jackson</groupId>  
39.             <artifactId>jackson-mapper-asl</artifactId>  
40.             <version>1.9.13</version>  
41.         </dependency>  
42.   
43.         <dependency>  
44.             <groupId>org.codehaus.jackson</groupId>  
45.             <artifactId>jackson-core-asl</artifactId>  
46.             <version>1.9.13</version>  
47.         </dependency>  
48.     </dependencies>  
49.     <build>  
50.         <finalName>zjl</finalName>  
51.         <plugins>  
52.             <plugin>  
53.                 <groupId>org.mortbay.jetty</groupId>  
54.                 <artifactId>jetty-maven-plugin</artifactId>  
55.                 <configuration>  
56.                     <stopPort>9966</stopPort>  
57.                     <stopKey>foo</stopKey>  
58.                     <scanIntervalSeconds>0</scanIntervalSeconds>  
59.                     <connectors>  
60.                         <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">  
61.                             <port>8088</port>  
62.                             <maxIdleTime>60000</maxIdleTime>  
63.                         </connector>  
64.                     </connectors>  
65.                     <webAppConfig>  
66.                         <contextPath>/</contextPath>  
67.                     </webAppConfig>  
68.                 </configuration>  
69.             </plugin>  
70.   
71.             <plugin>  
72.                 <groupId>org.apache.tomcat.maven</groupId>  
73.                 <artifactId>tomcat7-maven-plugin</artifactId>  
74.                 <version>2.2</version>  
75.                 <configuration>  
76.                     <port>8088</port>  
77.                     <path>/</path>  
78.                     <uriEncoding>UTF-8</uriEncoding>  
79.                 </configuration>  
80.             </plugin>  
81.         </plugins>  
82.     </build>  
83. </project>

**这里注意如果相关json包没有添加到pom.xml文件中会报：406 not acceptable**   
4.spring-servlet.xml文件：

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1.  <beans xmlns="http://www.springframework.org/schema/beans"    
2.   xmlns:context="http://www.springframework.org/schema/context"    
3.   xmlns:p="http://www.springframework.org/schema/p"    
4.   xmlns:mvc="http://www.springframework.org/schema/mvc"    
5.   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    
6.   xsi:schemaLocation="http://www.springframework.org/schema/beans    
7.        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd    
8.        http://www.springframework.org/schema/context    
9.        http://www.springframework.org/schema/context/spring-context.xsd    
10.       http://www.springframework.org/schema/mvc    
11.       http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">    
12.          
13.      <mvc:annotation-driven />    
14.          
15.      <context:component-scan base-package="xm.zjl.controller" />    
16.          
17.      <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/" p:suffix=".jsp" />    
18. </beans>

5.web.xml文件：

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1.  <?xml version="1.0" encoding="UTF-8"?>    
2.  <web-app     
3.      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    
4.      xmlns="http://java.sun.com/xml/ns/javaee"     
5.      xmlns:web="http://java.sun.com/xml/ns/javaee/web-app\_2\_5.xsd"    
6.      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app\_3\_0.xsd"    
7.      id="WebApp\_ID"     
8.      version="3.0">    
9.      <context-param>    
10.         <param-name>contextConfigLocation</param-name>    
11.             
12.         <param-value>/WEB-INF/spring-servlet.xml</param-value>    
13.     </context-param>    
14.     <listener>    
15.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    
16.     </listener>    
17.         
18.     <servlet>    
19.         <servlet-name>spring</servlet-name>    
20.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    
21.         <load-on-startup>1</load-on-startup>    
22.     </servlet>    
23.         
24.     <servlet-mapping>    
25.         <servlet-name>spring</servlet-name>    
26.         <url-pattern>\*.do</url-pattern>    
27.     </servlet-mapping>    
28. </web-app>

**这里需要注意的是：**

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1.  <span style="color:\#ff9900;"><strong> <servlet-mapping>    
2.          <servlet-name>spring</servlet-name>    
3.          <url-pattern>\*.do</url-pattern>    
4.      </servlet-mapping>  </strong></span>

**如果写成：**

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1.  <span style="color:\#ff9900;"><strong> <servlet-mapping>    
2.          <servlet-name>spring</servlet-name>    
3.          <url-pattern>/</url-pattern>    
4.      </servlet-mapping>  </strong></span>

**会提示：$ is not defined错误**  
记录一下

[spring]: http://lib.csdn.net/base/javaee
[view plain]: http://blog.csdn.net/zhujianli1314/article/details/43193183#