我正在尝试验证服务器中的HTTP请求。 http客户端可以向我发送不同的请求,其中有些请求可能与我的服务器不匹配,因此在这种情况下,我必须向客户端发送响应,表明请求有问题。
在继续阅读之前,请考虑更改字段名称的顺序不会影响响应。因此,字段的顺序无关紧要。
例如: 这是法律要求:
POST http://localhost HTTP/1.1
HOST: (here is an IP adress)
Content-Length: 50
Connection: Close
Authorization: Basic YWxhZGRpbjpvcGVuc2VzYW1l
User_Id = 123456
Item_Id = 5007
Color = 1010
(注意:如果请求只有这些字段名称,则该请求将是合法的, 如果它包含任何其他字段名称,将被视为非法)
由于请求有效,因此我的服务器将发送200 OK作为响应,如下所示:
HTTP/1.1 200 OK
Connection: Close
Payment: 2755201
但是,例如,如果请求的字段或未知字段的值错误,则如下所示: 错误的User_Id值:
POST http://localhost HTTP/1.1
HOST: (here is an IP adress)
Content-Length: 50
Connection: Close
Authorization: Basic YWxhZGRpbjpvcGVuc2VzYW1l
User_Id = -2323
Item_Id = 5007
Color = 1010
响应将是:
HTTP/1.1 200 OK
Connection: Close
Error_ID: 602
Error_String: Error in user_Id (illegal user ID)
或未知的字段名称:
POST http://localhost HTTP/1.1
HOST: (here is an IP adress)
Content-Length: 50
Connection: Close
Authorization: Basic YWxhZGRpbjpvcGVuc2VzYW1l
User_Id = 123456
Item_Id = 5007
Sale = 0.5
Color = 1010
响应将是:
HTTP/1.1 200 OK
Connection: Close
Error_ID: 602
Error_String: Sale , unknown field name
作为一种验证方式,我考虑将所有有效字段名称放入枚举,当我收到请求时,将基于此枚举对它们进行分析,但是我有更多有效字段(不仅user_Id,item_Id和color),因此采用这种方式可能会花费很长时间并且效率很低,尤其是因为对字段的顺序并不重要。
这是我的服务器代码:
@Test
public void main() throws IOException
{
serverSocket = new ServerSocket(80);
Socket clnt = null;
while (true)
{
clnt = serverSocket.accept();
System.out.println("after accept in server");
BufferedReader request = new BufferedReader(new InputStreamReader(clnt.getInputStream()));
BufferedWriter response = new BufferedWriter(new OutputStreamWriter(clnt.getOutputStream()));
String req = ".", strReq = "";
try
{
req=request.readLine();
while (!req.equals(""))
{
System.out.println(req);
strReq += (req + "\n");
req=request.readLine();
}
}
catch (Exception e)
{
// TODO: handle exception
e.printStackTrace();
System.out.println("xxxx");
}
System.out.println(strReq);
String httpResponse = "HTTP/1.1 200 OK\r\n";
//here will be the rest of the response
response.write(httpResponse);
System.out.println(httpResponse);
response.flush();
}
}
我是http的新手,所以如果有一些验证库或任何其他更有效的验证方法,我会很感激。
答案 0 :(得分:-1)
使用Spring mvc控制器。它使您的生活更轻松。验证将自动进行。例如
@RequestMapping(value = "user", method = RequestMethod.POST)
public Response addUser(@RequestBody @Valid User user) {
return userService.addUser(user);
}
public class User implements Serializable {
private Long id;
@NotNull
@NotEmpty
private String userName;
@NotNull
@NotEmpty
private String password;
@NotNull
@NotEmpty
private String firstName;
private String lastName;
//all getters and setters here
}
@ControllerAdvice
@RestController
public class GlobalExceptionController {
@ExceptionHandler({Exception.class})
@ResponseStatus(HttpStatus.BAD_REQUEST)
@ResponseBody
public Response handleBadRequest(Exception ex) {
Response response = new Response();
response.setStatus(HttpStatus.BAD_REQUEST.value());
response.setMessage(ex.getMessage());
return response;
}
}
所有验证都将通过注释@Valid进行。如果需要,可以在Spring全局异常控制器中处理异常