SpringMVC中@ResponseBody中文乱码

常常json以@ResponseBody注解String类型返回，由于 StringHttpMessageConverter里面默认设置了字符集是ISO-8859-1，因此这儿传回去的字符串中的中文常常是乱码，多个？号表示的样子，解决的方法是将StringHttpMessageConverte r默认值改为UTF-8才行。

spring配置文件中添加这两个bean，代码如下：

<bean name="utf8Charset" class="java.nio.charset.Charset" factory-method="forName" >
<constructor-arg value="UTF-8" ></constructor-arg>
</bean>
<bean
class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg ref="utf8Charset">
</constructor-arg>
<property name="supportedMediaTypes">
<list>
<bean class="org.springframework.http.MediaType">
<constructor-arg value="text" />
<constructor-arg value="plain" />
<constructor-arg value="UTF-8" />
</bean>
<bean class="org.springframework.http.MediaType">
<constructor-arg value="application" />
<constructor-arg value="json" />
<constructor-arg value="UTF-8" />
</bean>
</list>
</property>
</bean>

还需要添加如下几个jar包：

<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>