SpringMVC错误记录

Could not obtain transaction-synchronized Session for current thread

在junit下测试是没有问题的，但是在springmvc下就会抛出异常：无法为当前线程获取同步session

org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread
    at org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:134)
    at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:1014)

applicationContext.xml配置文件

<?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:p="http://www.springframework.org/schema/p"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

        <context:component-scan base-package="pers.msidolphin.sshdemo.*">
            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        </context:component-scan>

        <!-- 整合hibernate相关配置 -->
        <import resource="classpath:pers/msidolphin/sshdemo/resources/spring-config/applicationContext-hibernate.xml"/>
        <!-- 可能用到的bean配置 -->
        <import resource="classpath:pers/msidolphin/sshdemo/resources/spring-config/applicationContext-bean.xml"/>
</beans>

spring-mvc.xml配置文件

<?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:p="http://www.springframework.org/schema/p"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
        <context:component-scan base-package="pers.msidolphin.sshdemo.*">
            <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        </context:component-scan>

       <bean name="/users.action" class="pers.msidolphin.sshdemo.controller.TestController"></bean>
        <!-- 配置映射器 -->
        <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>
        <!-- 配置适配器 -->
        <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>
        <bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter"></bean>
        <!-- 配置视图解析器 -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"></bean>

        <!-- 注解形式 -->
        <!--  
        <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
        <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
        -->
        <!-- 这一条可代替上面两条 -->
        <mvc:annotation-driven/>
</beans>

applicationContext.xml是有事务管理的，但是spring-mvc.xml是没有配置的，所以解决方法是在spring-mvc.xml配置文件中不要再次扫描@Service注解

<context:component-scan base-package="pers.msidolphin.sshdemo.*">
            <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service"/>
</context:component-scan>

 Java.lang.IllegalArgumentException: No converter found for return value of type: xxxx

导入的jar包版本错误

前端无法接收后端返回的json数据(请求的格式json)，返回415状态码：

415状态码表示：请求的提交的格式不是服务器所支持的类型。这应该是解析json时出错

当请求的格式为key/value时，返回500状态码并抛出以上异常：

这大概就是Spring MVC所依赖的json jar包导错了

当时使用的spring版本为4.3.8，而引入的jackson依赖包为：

但是在spring4中使用的是这三个依赖包: