HttpRequestBase - 如何打印请求及其所有数据

tostring http java

2022-09-03 01:59:30

我正在使用HttpRequestBase，我想在使用之前将请求完全记录到日志文件中。

默认值为String仅返回请求行，我想打印所有标头，参数，请求正文等...

有没有办法做到这一点？

答案 1

对象（，等）包含有关标头、参数的信息，实现类包含正文，但它实际上并未序列化为 .当实际发送请求时，就会发生这种情况。HttpRequestBaseHttpGetHttpPostStringHttpClient

您可以使用 http 组件日志记录配置。

或者，您可以调用适当的方法并自己动手。

HttpRequestBase base = new HttpGet("www.google.com");
Header[] headers = base.getAllHeaders();
// iterate and print

对于主体，您需要强制转换为实现类并获取，如果它有。HttpEntity

HttpEntity entity = ((HttpPost)base).getEntity(); // example

并打印它（其内容）。注意：这可能会消耗实体。InputStream

完整示例

HttpPost post = new HttpPost("www.google.com");
post.setHeader(new BasicHeader("User-Agent", "random client"));
HttpEntity entity = new StringEntity("yellaworld");
post.setEntity(entity);
Header[] headers = post.getAllHeaders();
String content = EntityUtils.toString(entity);

System.out.println(post.toString());
for (Header header : headers) {
    System.out.println(header.getName() + ": " + header.getValue());
}
System.out.println();
System.out.println(content);

指纹

POST www.google.com HTTP/1.1
User-Agent: random client

yellaworld

答案 2

这有效

private void printRequest() {
            System.out.println("receive " + httpRequest.getMethod() +" notification for "+ httpRequest.getRequestURI());


            System.out.println(" \n\n Headers");

            Enumeration headerNames = httpRequest.getHeaderNames();
            while(headerNames.hasMoreElements()) {
                String headerName = (String)headerNames.nextElement();
                System.out.println(headerName + " = " + httpRequest.getHeader(headerName));
            }

            System.out.println("\n\nParameters");

            Enumeration params = httpRequest.getParameterNames();
            while(params.hasMoreElements()){
                String paramName = (String)params.nextElement();
                System.out.println(paramName + " = " + httpRequest.getParameter(paramName));
            }

            System.out.println("\n\n Row data");
            System.out.println(extractPostRequestBody(httpRequest));
        }

        static String extractPostRequestBody(HttpServletRequest request) {
            if ("POST".equalsIgnoreCase(request.getMethod())) {
                Scanner s = null;
                try {
                    s = new Scanner(request.getInputStream(), "UTF-8").useDelimiter("\\A");
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return s.hasNext() ? s.next() : "";
            }
            return "";
        }