在做springboot項目本地test測試時發現出現請求參數和返回值亂碼問題，過濾器和yml文件中設置的utf-8編碼都不起左右，可是使用postman請求時發現請求參數和返回值編碼正常，一頓debug找原因最后發現是restemplate出現亂碼，原代碼如下：
1 @Test 2 public void getGoodsContent() { 3 RestTemplate restTemplate = new RestTemplate(); 4 MediaType type = MediaType.parseMediaType("application/json;charset=UTF-8"); 5 6 HttpHeaders headers = new HttpHeaders(); 7 headers.setContentType(type); 8 headers.add("Accept", MediaType.APPLICATION_JSON.toString()); 9 10 String paramter = "{'cityName': '北京'}"; 11 HttpEntity<String> entity = new HttpEntity<String>(paramter); 12 13 String json = restTemplate.postForObject("http://localhost:10013/goods/getGoodsContent", entity, String.class); 14 System.out.println(json); 15 }
修改后：
@Test public void getGoodsContent() { RestTemplate restTemplate = new RestTemplate(); // 設置restemplate編碼為utf-8 restTemplate.getMessageConverters().set(1,new StringHttpMessageConverter(StandardCharsets.UTF_8)); MediaType type = MediaType.parseMediaType("application/json;charset=UTF-8"); HttpHeaders headers = new HttpHeaders(); headers.setContentType(type); headers.add("Accept", MediaType.APPLICATION_JSON.toString()); String paramter ="{'cityName': '北京'}"; HttpEntity<String> entity = new HttpEntity<String>(paramter); String json = restTemplate.postForObject("http://localhost:10013/goods/getGoodsContent", entity, String.class); System.out.println(json); }
增加了 restTemplate.getMessageConverters().set(1,new StringHttpMessageConverter(StandardCharsets.UTF_8));代碼，意思是設置restemplate編碼為utf-8,因為不設置此編碼，restemplate底層是默認使用ISO-8859-1編碼，所以在請求發送出去后編碼格式並不是utf-8，此時在接收端即使用了編碼過濾器也沒有作用