SpringMVC接口返回Json字符串中文乱码问题

​​乱码演示​​

​​解决方式​​

​​方式1：对应的RequestMapping设置编码格式​​

​​方式2：在springMvc的核心配置文件中添加JSON乱码问题配置​​

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乱码演示

我的接口

package com.lingaolu.controller;
 
import com.lingaolu.bean.Student;
 
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
 
@Controller
@RequestMapping("/student")
public class StudentController {
 
 
    @ResponseBody
    @RequestMapping(value="/students")
    public String test(){
        Student student = new Student("林某",27);
        return student.toString();
    }
 
}

访问

解决方式

方式1：对应的RequestMapping设置编码格式

produces = "application/json;charset=UTF-8"，或者 produces =MediaType.APPLICATION_JSON_UTF8_VALUE

接口变为

package com.lingaolu.controller;
 
import com.lingaolu.bean.Student;
 
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
 
@Controller
@RequestMapping("/student")
public class StudentController {
 
 
    @ResponseBody
    @RequestMapping(value="/students",produces = "application/json;charset=UTF-8")
    public String test(){
        Student student = new Student("林某",27);
        return student.toString();
    }
 
}

测试，解决

方式2：在springMvc的核心配置文件中添加JSON乱码问题配置

<!-- JSON乱码问题配置 -->
<mvc:annotation-driven>
    <mvc:message-converters>
        <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>

测试，解决