这儿只写两个常用的三种接收方式
我们用得最多的应该属于form表单提交,比如页面代码：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>Insert title here</title> </head> <body> <form action="http://localhost:8080/user" method="post">
username:<input type="text" name="username" /><br> password:<input type="password" name="password" /> <br> <input type="submit" value="登录">
</form>
</body> </html>
后台控制器
@Controller public class UserController {
@PostMapping("/user") @ResponseBody public void add(String username,String password){ System.out.println("打印:"+username+"---->"+password); } }
第二种json提交，如果content-type是json，那么接收数据就需要从流里获取，话不多说，直接上代码：
/** * 从request中获取json * @param request * @return */ public String getJsonStr(HttpServletRequest request){ BufferedReader reader = null; StringBuilder sb = new StringBuilder(); try{ reader = new BufferedReader(new InputStreamReader(request.getInputStream(), "utf-8")); String line = null; while ((line = reader.readLine()) != null){ sb.append(line); } } catch (IOException e){ e.printStackTrace(); } finally { try{ if (null != reader){ reader.close(); } } catch (IOException e){ e.printStackTrace(); } } return sb.toString(); }第三种，接收xml：
public String getXml(HttpServletRequest request) throws IOException{ BufferedReader reader = request.getReader(); String line = ""; String xmlString = null; StringBuffer inputString = new StringBuffer(); while ((line = reader.readLine()) != null) { inputString.append(line); } xmlString = inputString.toString(); request.getReader().close(); System.out.println("xml：", xmlString); }
