RestTemplate处理非200返回_RestTemplate处理错误返回

问题描述

RestTemplate源码分析

1.调试postForEntity请求的方法找到判断响应结果状态码的方法是org.springframework.web.client.DefaultResponseErrorHandler类中的hasError方法

@Override
public boolean hasError(ClientHttpResponse response) throws IOException {
	int rawStatusCode = response.getRawStatusCode();
	HttpStatus statusCode = HttpStatus.resolve(rawStatusCode);
	return (statusCode != null ? hasError(statusCode) : hasError(rawStatusCode));
}

protected void handleResponse(URI url, HttpMethod method, ClientHttpResponse response) throws IOException {
	ResponseErrorHandler errorHandler = getErrorHandler();
	boolean hasError = errorHandler.hasError(response);
	if (logger.isDebugEnabled()) {
		try {
			int code = response.getRawStatusCode();
			HttpStatus status = HttpStatus.resolve(code);
			logger.debug("Response " + (status != null ? status : code));
		}
		catch (IOException ex) {
			// ignore
		}
	}
	if (hasError) {
		errorHandler.handleError(url, method, response);
	}
}

解决/处理办法

@Bean
public RestTemplate restTemplate(ClientHttpRequestFactory factory){
	RestTemplate restTemplate = new RestTemplate(factory);
	ResponseErrorHandler responseErrorHandler = new ResponseErrorHandler() {
		@Override
		public boolean hasError(ClientHttpResponse response) throws IOException {
			return true;
		}
		@Override
		public void handleError(ClientHttpResponse response) throws IOException {
		}
	};
	restTemplate.setErrorHandler(responseErrorHandler);
	return restTemplate;
}

注意说明
1.hasError默认写死true，都进；
2.handleError 为空，相当于跳过错误抛出

RestTemplate非200处理 RestTemplate错误处理 Spring Boot Spring Cloud

https://www.leftso.com/article/912.html