Could not find acceptable representation

如题，在调试代码的时候遇到类似问题，解决办法：

1.web.xml

<!-- 配置Spring MVC的前端控制器：DispatchcerServlet -->
<servlet>
    <servlet-name>SpringMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

2.pom.xml加入jackson，jackson和fastjson各有所长看使用场景

进行解析

<!--<dependency>&lt;!&ndash;2.alibaba&ndash;&gt;-->
  <!--<groupId>com.alibaba</groupId>-->
  <!--<artifactId>fastjson</artifactId>-->
  <!--<version>1.2.41</version>-->
<!--</dependency>-->
<!-- JSON: jackson -->
<dependency>
  <groupId>org.codehaus.jackson</groupId>
  <artifactId>jackson-core-asl</artifactId>
  <version>1.9.12</version>
</dependency>
<dependency>
  <groupId>org.codehaus.jackson</groupId>
  <artifactId>jackson-mapper-lgpl</artifactId>
  <version>1.9.12</version>
</dependency>