springmvc向前端傳送json資料中文亂碼問題解決方法

1.在@RequestMapping裡produces屬性裡設定

@RequestMapping(value = "/json",produces = "application/json;charset=UTF-8")

2.在springmvc配置檔案裡統一配置，解決亂碼問題（jackson能用，fastjson未知）

<!-- 處理請求返回json字串的亂碼問題(jackson) -->
    <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>