配置ajax请求springmvc返回json格式数据

逃离我推掉我的手 2022-07-19 05:57 235阅读 0赞

首先在controller的方法返回值（返回值类型为实体类）上增加@ResponseBody注解

然后两种配置方式如下：

**方式一：spring4.0以及之后版本推荐**

**pom.xml增加如下依赖包**

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.5.4</version>
    </dependency>

**springmvc.xml中增加如下配置**

<bean
    class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
    <property name="order" value="1" />
    <property name="mediaTypes">
    <map>
    <entry key="json" value="application/json" />
    <entry key="xml" value="application/xml" />
    <entry key="html" value="text/html" />
    </map>
    </property>
    <property name="defaultViews">
    <list>
    
    <bean
    class="org.springframework.web.servlet.view.json.MappingJackson2JsonView">
    </bean>
    </list>
    </property>
    <property name="ignoreAcceptHeader" value="true" />
    </bean>

**方法二：spring3.0以上版本推荐（也支持spring4.0版）**

**pom.xml增加如下依赖包**

<dependency>
          <groupId>org.codehaus.jackson</groupId>
          <artifactId>jackson-mapper-asl</artifactId>
          <version>1.9.13</version>
       </dependency>

**springmvc.xml中增加如下配置**

<bean id="mappingJacksonHttpMessageConverter"   class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
        <property name="supportedMediaTypes">
          <list>
            <value>text/html;charset=UTF-8</value>
          </list>
         </property>
      </bean>
       
      <bean  class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
          <list>
            <ref bean="mappingJacksonHttpMessageConverter" />
            </list>
        </property>
      </bean>