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spring mvc 和ajax异步交互完整实例代码

程序员文章站 2024-03-08 10:07:22
spring mvc 异步交互demo： 1.jsp页面： <%@ page language="java" contenttype="text/...

spring mvc 异步交互demo：

1.jsp页面：

<%@ page language="java" contenttype="text/html; charset=utf-8" 
 pageencoding="utf-8"%> 
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> 
<html> 
<head> 
<script type="text/javascript" src="js/jquery-2.1.3.js"></script> 
<script type="text/javascript" src="js/jquery-2.1.3.min.js"></script> 
<meta http-equiv="content-type" content="text/html; charset=utf8"> 
<title>insert title here</title> 
<script type="text/javascript"> 
 function ajaxtest(){ 
  $.ajax({ 
  data:"name="+$("#name").val(), 
  type:"get", 
  datatype: 'json', 
  url:"user/login.do", 
  error:function(data){ 
   alert("出错了！！:"+data.msg); 
  }, 
  success:function(data){ 
   alert("success:"+data.msg); 
   $("#result").html(data.msg) ; 
  } 
  }); 
 } 
</script> 
</head> 
<body> 
 <input type="text" name="name" id="name"/> 
 <input type="submit" value="登录" onclick="ajaxtest();"/> 
 <div id="result"></div> 
</body> 
</html>

2.controller：

package xm.zjl.controller; 
 
import java.io.ioexception; 
import java.util.hashmap; 
import java.util.map; 
 
import javax.servlet.http.httpservletrequest; 
import javax.servlet.http.httpservletresponse; 
 
import org.springframework.stereotype.controller; 
import org.springframework.web.bind.annotation.requestmapping; 
import org.springframework.web.bind.annotation.responsebody; 
 
/** 
 * 登录controller 
 * 
 * @author administrator 
 * 
 */ 
@controller 
@requestmapping("/user/*") 
public class logincontroller { 
 @requestmapping(value="login.do") 
 public @responsebody map<string,object> login(httpservletrequest request,httpservletresponse response) throws ioexception{ 
  system.out.println(request.getparameter("name")); 
  map<string,object> map = new hashmap<string,object>(); 
   
  if(request.getparameter("name").equals("123")){ 
   system.out.println("城东"); 
   map.put("msg", "成功"); 
  }else{ 
   system.out.println("失败"); 
   map.put("msg", "失败"); 
  } 
  return map; 
 } 
  
}

3.pom文件：

<project xmlns="http://maven.apache.org/pom/4.0.0" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" 
 xsi:schemalocation="http://maven.apache.org/pom/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> 
 <modelversion>4.0.0</modelversion> 
 <groupid>xiaoma</groupid> 
 <artifactid>zjl</artifactid> 
 <packaging>war</packaging> 
 <version>0.0.1-snapshot</version> 
 <name>zjl maven webapp</name> 
 <url>http://maven.apache.org</url> 
 <dependencies> 
  <dependency> 
   <groupid>junit</groupid> 
   <artifactid>junit</artifactid> 
   <version>3.8.1</version> 
   <scope>test</scope> 
  </dependency> 
  <dependency> 
   <groupid>org.springframework</groupid> 
   <artifactid>spring-webmvc</artifactid> 
   <version>4.1.0.release</version> 
  </dependency> 
  <dependency> 
   <groupid>org.springframework</groupid> 
   <artifactid>spring-web</artifactid> 
   <version>4.1.0.release</version> 
  </dependency> 
  <dependency> 
   <groupid>com.fasterxml.jackson.core</groupid> 
   <artifactid>jackson-databind</artifactid> 
   <version>2.5.0</version> 
  </dependency> 
  <dependency> 
   <groupid>commons-beanutils</groupid> 
   <artifactid>commons-beanutils</artifactid> 
   <version>1.9.2</version> 
  </dependency> 
  <dependency> 
   <groupid>org.codehaus.jackson</groupid> 
   <artifactid>jackson-mapper-asl</artifactid> 
   <version>1.9.13</version> 
  </dependency> 
 
  <dependency> 
   <groupid>org.codehaus.jackson</groupid> 
   <artifactid>jackson-core-asl</artifactid> 
   <version>1.9.13</version> 
  </dependency> 
 </dependencies> 
 <build> 
  <finalname>zjl</finalname> 
  <plugins> 
   <plugin> 
    <groupid>org.mortbay.jetty</groupid> 
    <artifactid>jetty-maven-plugin</artifactid> 
    <configuration> 
     <stopport>9966</stopport> 
     <stopkey>foo</stopkey> 
     <scanintervalseconds>0</scanintervalseconds> 
     <connectors> 
      <connector implementation="org.eclipse.jetty.server.nio.selectchannelconnector"> 
       <port>8088</port> 
       <maxidletime>60000</maxidletime> 
      </connector> 
     </connectors> 
     <webappconfig> 
      <contextpath>/</contextpath> 
     </webappconfig> 
    </configuration> 
   </plugin> 
 
   <plugin> 
    <groupid>org.apache.tomcat.maven</groupid> 
    <artifactid>tomcat7-maven-plugin</artifactid> 
    <version>2.2</version> 
    <configuration> 
     <port>8088</port> 
     <path>/</path> 
     <uriencoding>utf-8</uriencoding> 
    </configuration> 
   </plugin> 
  </plugins> 
 </build> 
</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：

<beans xmlns="http://www.springframework.org/schema/beans" 
 xmlns:context="http://www.springframework.org/schema/context" 
 xmlns:p="http://www.springframework.org/schema/p" 
 xmlns:mvc="http://www.springframework.org/schema/mvc" 
 xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" 
 xsi:schemalocation="http://www.springframework.org/schema/beans 
  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
  http://www.springframework.org/schema/context 
  http://www.springframework.org/schema/context/spring-context.xsd 
  http://www.springframework.org/schema/mvc 
  http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> 
  <!-- 启动注解驱动的spring mvc功能，注册请求url和注解pojo类方法的映射--> 
  <mvc:annotation-driven /> 
  <!-- 启动包扫描功能，以便注册带有@controller、@service、@repository、@component等注解的类成为spring的bean --> 
  <context:component-scan base-package="xm.zjl.controller" /> 
  <!-- 对模型视图名称的解析，在请求时模型视图名称添加前后缀 --> 
  <bean class="org.springframework.web.servlet.view.internalresourceviewresolver" p:prefix="/" p:suffix=".jsp" /> 
</beans>

5.web.xml文件：

<?xml version="1.0" encoding="utf-8"?> 
<web-app  
 xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" 
 xmlns="http://java.sun.com/xml/ns/javaee"  
 xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
 xsi:schemalocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
 id="webapp_id"  
 version="3.0"> 
 <context-param> 
  <param-name>contextconfiglocation</param-name> 
  <!-- 应用上下文配置文件 --> 
  <param-value>/web-inf/spring-servlet.xml</param-value> 
 </context-param> 
 <listener> 
  <listener-class>org.springframework.web.context.contextloaderlistener</listener-class> 
 </listener> 
 <!-- 配置spring核心servlet --> 
 <servlet> 
  <servlet-name>spring</servlet-name> 
  <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class> 
  <load-on-startup>1</load-on-startup> 
 </servlet> 
 <!-- url-pattern配置为/，不带文件后缀，会造成其它静态文件(js，css等)不能访问。如配为*.do，则不影响静态文件的访问 --> 
 <servlet-mapping> 
  <servlet-name>spring</servlet-name> 
  <url-pattern>*.do</url-pattern> 
 </servlet-mapping> 
</web-app>

这里需要注意的是：

<servlet-mapping> 
  <servlet-name>spring</servlet-name> 
  <url-pattern>*.do</url-pattern> 
 </servlet-mapping>

如果写成：

<servlet-mapping> 
  <servlet-name>spring</servlet-name> 
  <url-pattern>/</url-pattern> 
 </servlet-mapping>

会提示：$ is not defined错误

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