Java analog Post form submit httpclient action

2. Public static void Login () {
4. String url = "Http://www.***.com/login";
6. Postmethod Postmethod = new Postmethod (URL);
8. //Fill in the values of each form field
10. namevaluepair[] data = {
12. New Namevaluepair ("account", "[email protected]"),
14. New Namevaluepair ("Nexturl", " " "),
16. New Namevaluepair ("Lcallback", " " "),
18. New Namevaluepair ("password", "******"),
20. New Namevaluepair ("Persistent", "1"),};
22. //Put the value of the form into Postmethod
24. Postmethod.setrequestbody (data);
26. //Execute Postmethod
28. int statusCode = 0;
30. try {
32. StatusCode = Httpclient.executemethod (Postmethod);
34. } catch (HttpException e) {
36. E.printstacktrace ();
38. } catch (IOException e) {
40. E.printstacktrace ();
42. }
44. //HttpClient for requests to receive subsequent services, such as post and put cannot automatically process forwarding
46. //301 or 302
48. if (StatusCode = = httpstatus.sc_moved_permanently
50. || StatusCode = = httpstatus.sc_moved_temporarily) {
52. //Remove the turning address from the head
54. Header Locationheader = Postmethod.getresponseheader ("location");
56. String location = null;
58. if (locationheader! = null) {
60. Location = Locationheader.getvalue ();
62. System.out.println ("Diandianlogin:" + location);
64. } Else {
66. System.err.println ("Location field, value is null.");
68. }
70. return;
72. } Else {
74. System.out.println (Postmethod.getstatusline ());
76. String str = "";
78. try {
80. str = postmethod.getresponsebodyasstring ();
82. } catch (IOException e) {
84. E.printstacktrace ();
86. }
88. System.out.println (str);
90. }
92. Postmethod.releaseconnection ();
94. return;
96. }
108. One of the jar packages required:
112. 1, Commons-httpclient.jar
116. 2, Commons-codec.jar
120. 3, Commons-logging.jar
     

Today, when developing, encountered the use of Java HttpClient class to post data, the target received after the Chinese garbled problem.
Request-Side code:

Java code

2. /**
4. * HttpClient Submission Parameters
6. * @author [email protected]
8. */
10. Public static void Main (string[] args) throws IOException {
12. HttpClient client = new HttpClient ();
14. Client.gethostconfiguration (). Sethost ("127.0.0.1", 8081, "http");
16. //Submit data using Post
18. HttpMethod method = Getpostmethod ();
20. Client.executemethod (method);
22. //The status returned by the print server
24. System.out.println (Method.getstatusline ());
26. //Print results page
28. String response = new String (Method.getresponsebodyasstring (). GetBytes ("8859_1"));
30. //Print the returned information
32. SYSTEM.OUT.PRINTLN (response);
34. Method.releaseconnection ();
36. }
40. Submit data using Post
42. Private static HttpMethod Getpostmethod () {
44. String url = "/pushserver/notification.do?action=sendonemsg";
46. Namevaluepair message = new Namevaluepair ("message", "messaging content.")  ");
48. Post.setrequestbody (new Namevaluepair[]{message});
50. return post;
52. }
56. Submit data using Get method
58. Private static HttpMethod Getgetmethod () {
60. return new GetMethod ("/PUSHSERVER/NOTIFICATION.DO?ACTION=SENDONEMSG&MESSAGE=ABCD");
62. }

Target-side code:

Java code

2. /**
4. * For msgserver Remote Call
6. * @param request
8. * @param response
10. * @return
12. * @throws Exception
14. * @author [email protected]
16. */
18. Public Modelandview sendonemsg (HttpServletRequest request,
20. HttpServletResponse response) throws Exception {
22. String message = Servletrequestutils.getstringparameter (Request, "message");
24. }

After this code executes, the target can receive the message, but the Chinese garbled, also did not find the Transcoding method.

After analysis, the parameters of the HTTP request that were originally added with Namevaluepair will eventually be converted to requestentity submission to the HTTP server. Then, in Postmethod's parent class, Entityenclosingmethod found that the encoding (character set) of the commit can be set as long as the Getrequestcharset () method is overloaded.

After correction:

Java code

2. /**
4. * HttpClient Submission Parameters
6. * @author [email protected]
8. */
10. Public static void Main (string[] args) throws IOException {
12. HttpClient client = new HttpClient ();
14. Client.gethostconfiguration (). Sethost ("127.0.0.1", 8081, "http");
16. //Submit data using Post
18. HttpMethod method = Getpostmethod ();
20. Client.executemethod (method);
22. //The status returned by the print server
24. System.out.println (Method.getstatusline ());
26. //Print results page
28. String response = new String (Method.getresponsebodyasstring (). GetBytes ("8859_1"));
30. //Print the returned information
32. SYSTEM.OUT.PRINTLN (response);
34. Method.releaseconnection ();
36. }
40. Submit data using Post
42. Private HttpMethod Getpostmethod () {
44. String url = "/pushserver/notification.do?action=sendonemsg";
46. Postmethod post = new Utf8postmethod (URL);
48. Namevaluepair message = new Namevaluepair ("message", "messaging content.")  ");
50. Post.setrequestbody (new Namevaluepair[]{message});
52. return post;
54. }
58. Inner Class for UTF-8 support
60. Public static class Utf8postmethod extends postmethod{
62. Public utf8postmethod (String url) {
64. super (URL);
66. }
68. @Override
70. Public String Getrequestcharset () {
72. //return Super.getrequestcharset ();
74. return "UTF-8";
76. }
78. }
82. Submit data using Get method
84. Private static HttpMethod Getgetmethod () {
86. return new GetMethod ("/PUSHSERVER/NOTIFICATION.DO?ACTION=SENDONEMSG&MESSAGE=ABCD");
88. }

Java analog Post form submit httpclient action