<!--避免IE执行AJAX时,返回JSON出现下载文件 -->
<bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>
无法找到 "org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"
这个要注意spring版本,3.x和4.x配置不同
spring3.x是org.springframework.http.converter.json.MappingJacksonHttpMessageConverter
spring4.x是org.springframework.http.converter.json.MappingJackson2HttpMessageConverter
将 "org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" 替换为 "org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" 即可。