SpringBoot返回页面乱码解决

 1 import java.nio.charset.Charset;
 2 import java.util.List;
 3 
 4 import org.springframework.context.annotation.Bean;
 5 import org.springframework.context.annotation.Configuration;
 6 import org.springframework.http.converter.HttpMessageConverter;
 7 import org.springframework.http.converter.StringHttpMessageConverter;
 8 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 9 import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
10 
11 import com.fasterxml.jackson.databind.ObjectMapper;
12 
13 import ch.qos.logback.classic.pattern.MessageConverter;
14 
15 /**
16  * 解决页面返回的中文乱码。
17  * 自定义消息转换器：自定义WebConfiguration继承WebMvcConfigurationSupport类
18  * @author Administrator
19  * @date 2018年10月18日上午12:34:22
20  */
21 @Configuration
22 public class WebConfiguration extends WebMvcConfigurationSupport{
23     
24     //1.这个为解决中文乱码
25     @Bean
26     public HttpMessageConverter<String> responseBodyConverter() {
27         StringHttpMessageConverter converter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
28         return converter;
29     }
30     
31     
32     //2.1：解决中文乱码后，返回json时可能会出现No converter found for return value of type: xxxx
33     //或这个：Could not find acceptable representation
34     //解决此问题如下
35     public ObjectMapper getObjectMapper() {
36         return new ObjectMapper();
37     }
38     
39     //2.2：解决No converter found for return value of type: xxxx
40     public MappingJackson2HttpMessageConverter messageConverter() {
41         MappingJackson2HttpMessageConverter converter=new MappingJackson2HttpMessageConverter();
42         converter.setObjectMapper(getObjectMapper());
43         return converter;
44     }
45     
46 
47 
48     @Override
49     public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
50         super.configureMessageConverters(converters);
51         //解决中文乱码
52         converters.add(responseBodyConverter());
53         
54         //解决： 添加解决中文乱码后的配置之后，返回json数据直接报错 500：no convertter for return value of type
55         //或这个：Could not find acceptable representation
56         converters.add(messageConverter());
57     }
58 
59 }