RestTemplate调用接口返回中文乱码

傷城~ 2024-03-16 14:17 97阅读 0赞

## 现象描述 ##

使用RestTemplate 发送http请求，调用接口，返回的结果中，出现中文乱码情况

代码片段

ResponseEntity<String> response = restTemplate.getForEntity(oraPatrolItemListUrl, String.class);
    String body = response.getBody();
    System.out.println(body);

![在这里插入图片描述][d00bfccec1df4a16a2d9c9880a5db0f7.png]

## 问题查找 ##

找到RestTemplate 的初始化配置类

@Configuration
    public class RestTemplateConfig{
        
    	
    	private int timeoutms = 5 * 60 *1000;
    	
        @Bean
        public RestTemplate restTemplate(ClientHttpRequestFactory factory){
        
            return new RestTemplate(factory);;
        }
        
        @Bean
        public ClientHttpRequestFactory simpleClientHttpRequestFactory(){
        
            SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
            factory.setReadTimeout(timeoutms);//ms
            factory.setConnectTimeout(timeoutms);//ms
            return factory;
        }
    }

需要对该配置类进行改造一下哦

## 具体改造方法 ##

方式一（推荐）：

package com.xxl.job.executor.config;
    
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.http.client.ClientHttpRequestFactory;
    import org.springframework.http.client.SimpleClientHttpRequestFactory;
    import org.springframework.http.converter.HttpMessageConverter;
    import org.springframework.http.converter.StringHttpMessageConverter;
    import org.springframework.web.client.RestTemplate;
    
    import java.nio.charset.StandardCharsets;
    import java.util.List;
    
    @Configuration
    public class RestTemplateConfig{
        
    	
    	private int timeoutms = 5 * 60 *1000;
    	
        @Bean
        public RestTemplate restTemplate(ClientHttpRequestFactory factory){
        
            RestTemplate restTemplate = new RestTemplate(factory);
            List<HttpMessageConverter<?>> converterList =restTemplate.getMessageConverters();
            int converterIndex = -1;
            for (int i=0;i<converterList.size();i++){
        
                if(converterList.get(i).getClass() == StringHttpMessageConverter.class){
        
                    converterIndex = i;
                    break;
                }
            }
            if(converterIndex !=-1) {
        
                restTemplate.getMessageConverters().set(converterIndex, new StringHttpMessageConverter(StandardCharsets.UTF_8));
            }
            return restTemplate;
        }
        
        @Bean
        public ClientHttpRequestFactory simpleClientHttpRequestFactory(){
        
            SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
            factory.setReadTimeout(timeoutms);//ms
            factory.setConnectTimeout(timeoutms);//ms
            return factory;
        }
    }

方式二：（简单版，不推荐）

@Configuration
    public class RestTemplateConfig{
        
    	
    	private int timeoutms = 5 * 60 *1000;
    	
        @Bean
        public RestTemplate restTemplate(ClientHttpRequestFactory factory){
        
            RestTemplate restTemplate = new RestTemplate(factory);
            restTemplate.getMessageConverters().set(1, new StringHttpMessageConverter(StandardCharsets.UTF_8));
            return restTemplate;
        }
        
        @Bean
        public ClientHttpRequestFactory simpleClientHttpRequestFactory(){
        
            SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
            factory.setReadTimeout(timeoutms);//ms
            factory.setConnectTimeout(timeoutms);//ms
            return factory;
        }
    }

改造完成之后，在调用一下接口，发现不再乱码了  
![在这里插入图片描述][51aec726ff9f4f84956db7eedf07315d.png]

[d00bfccec1df4a16a2d9c9880a5db0f7.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/16/c275a9c3c2d94c809c53a23d6389c8f7.png
[51aec726ff9f4f84956db7eedf07315d.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/16/f3b8c2613d0a41dba4f412fbbcf0b883.png