springboot乱码解决方法

springboot乱码现象可以用以下方法来解决，本人是以防万一，所以都设置了。

1.jsp文件编码方式设置为UTF-8,如果新建的jsp文件，默认不是utf-8，在eclipse中，设置新建的jsp文件为utf-8

<%@ page language="java" contentType="text/html; charset=UTF-8"
     pageEncoding="UTF-8"%>

2.在application.properties中添加如下

spring.http.encoding.force=true
 spring.http.encoding.charset=UTF-8
 spring.http.encoding.enabled=true
 server.tomcat.uri-encoding=UTF-8

3.在@RequestMapping中添加produces="application/json;charset=utf-8"，如下

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

4.添加一个消息转换器

@Configuration
public class CustomMVCConfiguration extends WebMvcConfigurerAdapter {

    @Bean
    public HttpMessageConverter<String> responseBodyConverter() {
        StringHttpMessageConverter converter = new StringHttpMessageConverter(
                Charset.forName("UTF-8"));
        return converter;
    }

     public void configureMessageConverters(
            List<HttpMessageConverter<?>> converters) {
        super.configureMessageConverters(converters);
        converters.add(responseBodyConverter());
    }

     public void configureContentNegotiation(
            ContentNegotiationConfigurer configurer) {
        configurer.favorPathExtension(false);
    }