<!-- 使用spring mvc注解 -->
<mvc:annotation-driven>
<mvc:message-converters>
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>
<ref bean="mappingJacksonHttpMessageConverter" />
<bean class="org.springframework.http.converter.FormHttpMessageConverter"></bean>
</mvc:message-converters>
</mvc:annotation-driven>
很多人都碰到过,SpringMVC使用 @ResponseBody 注解,返加字符串不做任何处理时,有可能会出现乱码问题。
这是由于 StringHttpMessageConverter 类中,默认采用的字符集是 ISO-8859-1。
public class StringHttpMessageConverter extends AbstractHttpMessageConverter<String> { public static final Charset DEFAULT_CHARSET = Charset.forName("ISO-8859-1"); private final Charset defaultCharset; private final List<Charset> availableCharsets; private boolean writeAcceptCharset = true; /** * A default constructor that uses {@code "ISO-8859-1"} as the default charset. * @see #StringHttpMessageConverter(Charset) */ public StringHttpMessageConverter() { this(DEFAULT_CHARSET); }
那么要解决乱码问题,需要改变 StringHttpMessageConverter 中的默认字符集,本文中以UTF-8为例。
修改默认字付集:
<bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter"> <constructor-arg value="UTF-8" index="0"/> <property name="supportedMediaTypes"> <list> <value>text/plain;charset=UTF-8</value> </list> </property> </bean>
配置起效
方式一:
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/> <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="stringHttpMessageConverter"/> <ref bean="jackson2HttpMessageConverter"/> </list> </property> </bean> <mvc:annotation-driven />
注:配置必须在 <mvc:annotation-driven /> 之前,否则将不会启效;<mvc:annotation-driven /> 会自动注册DefaultAnnotationHandlerMapping 与AnnotationMethodHandlerAdapter。
方式二:
<mvc:annotation-driven> <mvc:message-converters> <ref bean="stringHttpMessageConverter"/> <ref bean="jackson2HttpMessageConverter"/> </mvc:message-converters> </mvc:annotation-driven>
原文地址:https://www.cnblogs.com/lujing-newer/p/8267684.html