(转载)spring3和spring4的一些需要注意的地方

转载地址：http://blog.csdn.net/cr135810/article/details/52302387

最近搭建了一个框架，开始用的spring3.1.1 后来升级到spring4.2.0，把遇到的问题记录一下当做备份了

1、Java.lang.NoSuchMethodError: org.springframework.aop.scope.ScopedProxyUtils.isScopedTarget(Ljava/lang/String;)Z

这个问题是因为，我的项目里有两个aop的jar包一个是之前的3.1.1一个是4.2.0，把3.1.1的删除掉就好了

2、org.springframework.web.servlet.view.ContentNegotiatingViewResolver的配置

invalid property ‘mediatypes’ of bean [org.springframework.web.servlet.view.ContentNegotiatingViewResolver] 遇到一个这个错误

spring3 是这样的

[html] view plain copy

print?

1. <bean  
2.         class=”<span style=”color:#ff0000;”>org.springframework.web.servlet.view.ContentNegotiatingViewResolver</span>”>  
3.         <property name=“order” value=“1”></property>  
4.         <property name=“mediaTypes”>  
5.             <map>  
6.                 <!– 告诉视图解析器，返回的类型为json格式 –>  
7.                 <entry key=“json” value=“application/json” />  
8.                 <entry key=“xml” value=“application/xml” />  
9.                 <entry key=“htm” value=“text/htm” />  
10.             </map>  
11.         </property>  
12.         <property name=“defaultViews”>  
13.             <list>  
14.                 <!– ModelAndView里的数据变成JSON –>  
15.                 <bean  
16.                     class=“org.springframework.web.servlet.view.json.MappingJacksonJsonView” />  
17.             </list>  
18.         </property>  
19.         <property name=“ignoreAcceptHeader” value=“true”></property>  
20.     </bean>  

<bean        class="<span style="color:#ff0000;">org.springframework.web.servlet.view.ContentNegotiatingViewResolver</span>">        <property name="order" value="1"></property>        <property name="mediaTypes">            <map>                <!-- 告诉视图解析器，返回的类型为json格式 -->                <entry key="json" value="application/json" />                <entry key="xml" value="application/xml" />                <entry key="htm" value="text/htm" />            </map>        </property>        <property name="defaultViews">            <list>                <!-- ModelAndView里的数据变成JSON -->                <bean                    class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" />            </list>        </property>        <property name="ignoreAcceptHeader" value="true"></property>    </bean>

spring4 就得改为下面这个样子，问题就解决了

[html] view plain copy

print?

1. <bean  
2.         class=”<span style=”color:#ff0000;”>org.springframework.web.accept.ContentNegotiationManagerFactoryBean</span>”>  
3.         <property name=“favorPathExtension” value=“true” />  
4.         <property name=“favorParameter” value=“true” />  
5.         <property name=“ignoreAcceptHeader” value=“true”></property>  
6.         <property name=“defaultContentType” value=“text/html” />  
7.         <property name=“mediaTypes”>  
8.             <map>  
9.                 <!– 告诉视图解析器，返回的类型为json格式 –>  
10.                 <entry key=“json” value=“application/json” />  
11.                 <entry key=“xml” value=“application/xml” />  
12.                 <entry key=“htm” value=“text/htm” />  
13.                 <entry key=“file” value=“application/octet-stream” />  
14.                 <entry key=“image” value=“image/*” />  
15.             </map>  
16.         </property>         
17.     </bean>  

<bean        class="<span style="color:#ff0000;">org.springframework.web.accept.ContentNegotiationManagerFactoryBean</span>">        <property name="favorPathExtension" value="true" />        <property name="favorParameter" value="true" />        <property name="ignoreAcceptHeader" value="true"></property>        <property name="defaultContentType" value="text/html" />        <property name="mediaTypes">            <map>                <!-- 告诉视图解析器，返回的类型为json格式 -->                <entry key="json" value="application/json" />                <entry key="xml" value="application/xml" />                <entry key="htm" value="text/htm" />                <entry key="file" value="application/octet-stream" />                <entry key="image" value="image/*" />            </map>        </property>           </bean>

3、问题找不到了，直接说一下修改的地方吧就是jackson的问题

spring3的配置如下

[html] view plain copy

print?

1. <!–避免IE执行AJAX时，返回JSON出现下载文件 –>  
2.     <bean id=“mappingJacksonHttpMessageConverter”  
3.         class=”org.springframework.http.converter.json.<span style=”color:#ff0000;”>MappingJacksonHttpMessageConverter</span>”>  
4.         <property name=“supportedMediaTypes”>  
5.             <list>  
6.                 <value>text/html;charset=UTF-8</value>  
7.             </list>  
8.         </property>  
9.     </bean>  

<!--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.<span style="color:#ff0000;">MappingJacksonHttpMessageConverter</span>">        <property name="supportedMediaTypes">            <list>                <value>text/html;charset=UTF-8</value>            </list>        </property>    </bean>

spring4的配置如下

[html] view plain copy

print?

1. <!–避免IE执行AJAX时，返回JSON出现下载文件 –>  
2.     <bean id=“mappingJacksonHttpMessageConverter”  
3.         class=”org.springframework.http.converter.json.<span style=”color:#ff0000;”>MappingJackson2HttpMessageConverter</span>”>  
4.         <property name=“supportedMediaTypes”>  
5.             <list>  
6.                 <value>text/html;charset=UTF-8</value>  
7.             </list>  
8.         </property>  
9.     </bean>  

<!--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.<span style="color:#ff0000;">MappingJackson2HttpMessageConverter</span>">        <property name="supportedMediaTypes">            <list>                <value>text/html;charset=UTF-8</value>            </list>        </property>    </bean>

两个的区别就是 文件名字变了，已做标红处理

4、有个asm的jar包在spring4已经不需要单独加载这个jar包了，删掉即可