spring mvc 和ajax異步交互完整實(shí)例代碼
spring MVC 異步交互demo:
1.jsp頁(yè)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("出錯(cuò)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="登錄" 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; /** * 登錄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("城東"); map.put("msg", "成功"); }else{ System.out.println("失敗"); map.put("msg", "失敗"); } 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>
這里注意如果相關(guān)json包沒有添加到pom.xml文件中會(huì)報(bào):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"> <!-- 啟動(dòng)注解驅(qū)動(dòng)的Spring MVC功能,注冊(cè)請(qǐng)求url和注解POJO類方法的映射--> <mvc:annotation-driven /> <!-- 啟動(dòng)包掃描功能,以便注冊(cè)帶有@Controller、@Service、@repository、@Component等注解的類成為spring的bean --> <context:component-scan base-package="xm.zjl.controller" /> <!-- 對(duì)模型視圖名稱的解析,在請(qǐng)求時(shí)模型視圖名稱添加前后綴 --> <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> <!-- 應(yīng)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配置為/,不帶文件后綴,會(huì)造成其它靜態(tài)文件(js,css等)不能訪問。如配為*.do,則不影響靜態(tài)文件的訪問 --> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>
這里需要注意的是:
<servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping>
如果寫成:
<servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>
會(huì)提示:$ is not defined錯(cuò)誤
記錄一下
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