restTemplate发送post请求，响应报文乱码

我会带着你远行 2023-02-20 02:53 85阅读 0赞

#### 背景 ####

今天在项目中调用百度云的智能地址识别，使用的是restTemplate发送post请求，最后发现响应体内的中文报错，静态方法如下：

public static AiAddress getAddress(String addressText) throws BizException { 
            String url = "https://aip.baidubce.com/rpc/2.0/nlp/v1/address?charset=UTF-8&access_token=" + getAuth();
            AiAddress aiAddress = new AiAddress();
            try { 
                RestTemplate restTemplate = new RestTemplate();
                //设置头信息
                HttpHeaders headers = new HttpHeaders();
                headers.setContentType(MediaType.APPLICATION_JSON);
                //构造表单参数
                MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
                params.add("text", addressText);
                HttpEntity<MultiValueMap<String, String>> requestEntity = new HttpEntity<>(params, headers);
                ResponseEntity<String> responseEntity = restTemplate.postForEntity(url, requestEntity, String.class);
                aiAddress = mapper.readValue(responseEntity.getBody(), AiAddress.class);
            } catch (Exception e) { 
                throw new BizException("文本内容无法识别，请重新输入后再试");
            }
            return aiAddress;
        }

使用postman模拟请求，结果如下：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoZW56aG91X3lo_size_16_color_FFFFFF_t_70]

#### 解决方案 ####

restTemplate.getMessageConverters().set(1, new StringHttpMessageConverter(StandardCharsets.UTF_8));

设置完之后，就会解决响应报文的乱码问题

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoZW56aG91X3lo_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200622170328723.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoZW56aG91X3lo,size_16,color_FFFFFF,t_70