SpringMVC环境下实现的Ajax异步请求JSON格式数据

一 环境搭建

首先是常规的spring mvc环境搭建，不用多说，需要注意的是，这里需要引入jackson相关jar包，然后在spring配置文件“springmvc-servlet.xml”中添加json解析相关配置，我这里的完整代码如下：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"><!-- 避免IE执行AJAX时,返回JSON出现下载文件 --><bean id="mappingJacksonHttpMessageConverter"class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"><property name="supportedMediaTypes"><list><value>text/html;charset=UTF-8</value><value>application/json;charset=UTF-8</value></list></property><property name="objectMapper"><bean class="org.codehaus.jackson.map.ObjectMapper"><property name="dateFormat"><bean class="java.text.SimpleDateFormat"><constructor-arg type="java.lang.String" value="yyyy-MM-dd HH:mm:ss"></constructor-arg></bean></property></bean></property></bean><!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 --><beanclass="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"><property name="messageConverters"><list><ref bean="mappingJacksonHttpMessageConverter" /><!-- json转换器 --></list></property></bean><mvc:annotation-drivencontent-negotiation-manager="contentNegotiationManager" /><bean id="contentNegotiationManager"class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean"><!-- true，开启扩展名支持，false关闭支持 --><property name="favorPathExtension" value="false" /><!-- 用于开启 /userinfo/123?format=json的支持 --><property name="favorParameter" value="true" /><!-- 设置为true以忽略对Accept Header的支持 --><property name="ignoreAcceptHeader" value="false" /><property name="mediaTypes"><value>atom=application/atom+xmlhtml=text/htmljson=application/jsonxml=application/xml*=*/*</value></property></bean><context:annotation-config /><!-- 启动自动扫描该包下所有的Bean(例如@Controller) --><context:component-scan base-package="cn.zifangsky.controller" /><mvc:default-servlet-handler /><!-- 定义视图解析器 --><bean id="jspViewResolver"class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="requestContextAttribute" value="rc" /><property name="viewClass"value="org.springframework.web.servlet.view.JstlView" /><property name="prefix" value="/WEB-INF/jsp/" /><property name="suffix" value=".jsp" /><property name="order" value="1"></property></bean></beans>