Java-JSON乱码（Jackson）处理

• application.xml

  <!-- JSON乱码处理：需要导入jackson依赖 -->
  <mvc:annotation-driven>
      <mvc:message-converters register-defaults="true">
          <bean class="org.springframework.http.converter.StringHttpMessageConverter">
              <constructor-arg value="UTF-8"/>
          </bean>
          <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
              <property name="objectMapper">
                  <bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">
                      <property name="failOnEmptyBeans" value="false"/>
                  </bean>
              </property>
          </bean>
      </mvc:message-converters>
  </mvc:annotation-driven>