zoukankan      html  css  js  c++  java
  • springMVC接受JSON异常

    在springMVC 使用@RequestBody接受Json总是报如下错误:

    HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.type.TypeFactory.constructType(Ljava/lang/reflect/Type;Ljava/lang/Class;)Lcom/fasterxml/jackson/databind/JavaType; type Exception report message Handler processing failed; nested exception is java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.type.TypeFactory.constructType(Ljava/lang/reflect/Type;Ljava/lang/Class;)Lcom/fasterxml/jackson/databind/JavaType; description The server encountered an internal error that prevented it from fulfilling this request. exception org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.type.TypeFactory.constructType(Ljava/lang/reflect/Type;Ljava/lang/Class;)Lcom/fasterxml/jackson/databind/JavaType; org.springframework.web.servlet.DispatcherServlet.triggerAfterCompletionWithError(DispatcherServlet.java:1302) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:977) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:871) javax.servlet.http.HttpServlet.service(HttpServlet.java:650) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause

    开始还以为是我文件配置和代码写得不对,后来发现居然是json包和spring包版本有冲突......

    我用的spring版本是4.2.5,所以应该jackson-core包的版本2.7.0改为2.6.5。

    下面是一些主要的配置json配置

    1.pom文件加载json包

    <dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.6.5</version>
    </dependency>
    <dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.6.5</version>
    </dependency>
    <dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.6.5</version>
    </dependency>

    2.springMVC文件配置类型转换器

    <mvc:annotation-driven>
      <mvc:message-converters>
        <bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
        <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
      </mvc:message-converters>
    </mvc:annotation-driven>

  • 相关阅读:
    317 随笔
    316 随笔
    315 随笔
    python 第一章
    matlab 第四章 第一节 字符串 元胞
    matlab 第三章 第二节 多维数组
    matlab 第三章
    python 循环+break continue
    Springboot 教程 导入
    matlab 第二章 第三节 数值表示、变量及表达式
  • 原文地址:https://www.cnblogs.com/michaelShao/p/5857138.html
Copyright © 2011-2022 走看看