Spring boot Get and post requests, and requestbody for JSON string processing

GET, post method, according to the request header Content-type value to judge:

• application/x-www-form-urlencoded, Optional (that is, not necessary, because the data of this situation @requestparam, @ModelAttribute can also be processed, of course @requestbody can also handle);
• Multipart/form-data, cannot be processed (i.e. using @requestbody cannot process data in this format);
• Other formats must be (other formats include Application/json, Application/xml, etc.). Data in these formats must be handled using @requestbody);
  

Code:  [Java]View PlainCopy

2. Package Com.example.controller;
6. Import org.springframework.web.bind.annotation.GetMapping;
8. Import org.springframework.web.bind.annotation.PathVariable;
10. Import Org.springframework.web.bind.annotation.RequestBody;
12. Import org.springframework.web.bind.annotation.RequestMapping;
14. Import Org.springframework.web.bind.annotation.RequestMethod;
16. Import Org.springframework.web.bind.annotation.RequestParam;
18. Import Org.springframework.web.bind.annotation.RestController;
22. Import Com.example.bean.RequestLoginBean;
24. Import Com.example.response.BaseResponse;
26. Import Com.google.gson.Gson;
30. @RestController
32. @RequestMapping (value = "/index")
34. Public class Login {
38. /** 
40. * Index Home
42. *
44. * @return
46. */
48. @RequestMapping (value = "/home")
50. Public String Home () {
52. return "Index Home";
54. }
58. /** 
60. * Get 1 parameters
62. *
64. * @param name
66. * User Name
68. * @return Return results
70. */
72. @GetMapping (value = "/{name}")
74. Public String Index (@PathVariable string name) {
76. return "Oh you is" + name + "<br> Nice to meet you"; It doesn't work, so just use the tags in the HTML .
78. }
82. /** 
84. * Simple POST request
86. *
88. * @param name
90. * @param pwd
92. * @return
94. */
96. @RequestMapping (value = "/testpost", method = Requestmethod.post)
98. Public String Testpost () {
100. System.out.println ("Hello test post");
102. return "OK";
104. }
108. /** 
110. * Get two parameters at the same time
112. *
114. * @param name
116. * User Name
118. * @param pwd
120. * Password
122. * @return Return results
124. */
126. @GetMapping (value = "/login/{name}&{pwd}")
128. Public String Login (@PathVariable string name, @PathVariable string pwd) {
130. if (name.equals ("admin") && pwd.equals ("admin")) {
132. return "Hello welcome admin";
134. } Else {
136. return "Oh sorry user name or password is wrong";
138. }
140. }
144. /** 
146. * Login via GET request
148. *
150. * @param name
152. * @param pwd
154. * @return
156. */
158. @RequestMapping (value = "/loginbyget", method = Requestmethod.get)
160. Public string Loginbyget (@RequestParam (value = "Name", required = true) string name,
162. @RequestParam (value = "pwd", required = true) String pwd) {
164. return Login4return (name, PWD);
166. }
170. /** 
172. * Login via POST request
174. *
176. * @param name
178. * @param pwd
180. * @return
182. */
184. @RequestMapping (value = "/loginbypost", method = Requestmethod.post)
186. Public string Loginbypost (@RequestParam (value = "Name", required = true) string name,
188. @RequestParam (value = "pwd", required = true) String pwd) {
190. System.out.println ("Hello post");
192. return Login4return (name, PWD);
194. }
198. /** 
200. * The parameter is a Bean object. Spring automatically associates mappings for us
202. * @param Loginbean
204. * @return
206. */
208. @RequestMapping (value = "/loginbypost1", method = {requestmethod.post, requestmethod.get})
210. Public String LoginByPost1 (Requestloginbean loginbean) {
212. if (null! = Loginbean) {
214. return Login4return (Loginbean.getname (), loginbean.getpwd ());
216. } Else {
218. return "error";
220. }
222. }
226. /** 
228. * The request content is a JSON string, and spring will automatically match him to our parameter bean, but add @requestbody annotations.
230. *
232. * @param name
234. * @param pwd
236. * @return
238. */
240. @RequestMapping (value = "/loginbypost2", method = {requestmethod.post, requestmethod.get})
242. Public String loginByPost2 (@RequestBody requestloginbean loginbean) {
244. if (null! = Loginbean) {
246. return Login4return (Loginbean.getname (), loginbean.getpwd ());
248. } Else {
250. return "error";
252. }
254. }
264. /** 
266. * Ways to respond to logins
268. *
270. * @param name
272. * User Name
274. * @param pwd
276. * Password
278. * @return Return processing results
280. */
282. private String Login4return (string name, string pwd) {
284. String result;
286. Baseresponse response = new Baseresponse ();
288. if (name.equals ("admin") && pwd.equals ("admin")) {
290. result = "Hello welcome admin";
292. Response.setstate (true);
294. } Else {
296. result = "Oh sorry user name or password is wrong";
298. Response.setstate (false);
300. }
302. System.out.println ("received request, request result:" + result);
304. return new Gson (). ToJson (response);
306. }
308. }

Spring boot Get and post requests, and requestbody for JSON string processing