servlet3.0获取参数与文件上传代码示例

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servlet3.0获取参数与文件上传代码示例

2018年08月26日 20:25:35 苏凯勇往直前 阅读数：98

 

1. package com.igeek.servlet;
2.  
3. import java.io.IOException;
4. import java.util.Collection;
5.  
6. import javax.servlet.ServletException;
7. import javax.servlet.annotation.MultipartConfig;
8. import javax.servlet.annotation.WebServlet;
9. import javax.servlet.http.HttpServlet;
10. import javax.servlet.http.HttpServletRequest;
11. import javax.servlet.http.HttpServletResponse;
12. import javax.servlet.http.Part;
13.  
14. import org.apache.catalina.core.ApplicationPart;
15.  
16. /**
17. * Servlet implementation class AddUserServlet
18. */
19. @WebServlet("/addUser")
20. @MultipartConfig // 该servlet要接收文件上传
21. public class AddUserServlet extends HttpServlet {
22. private static final long serialVersionUID = 1L;
23.  
24. /**
25. * @see HttpServlet#HttpServlet()
26. */
27. public AddUserServlet() {
28. super();
29. // TODO Auto-generated constructor stub
30. }
31.  
32. /**
33. * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
34. */
35. protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
36. //普通请求参数获取
37. String uname = request.getParameter("uname");
38. String upass = request.getParameter("upass");
39. System.out.println("uname="+uname+";upass="+upass);
40. //获取文件
41. Collection<Part> parts = request.getParts();
42. //遍历取出文件
43. for (Part part : parts) {
44. System.out.println("-----------------------");
45. if(part.getHeader("Content-Disposition").contains("filename")){
46. String fileName = part.getHeader("Content-Disposition");
47. fileName = fileName.substring(fileName.indexOf("filename="")+10, fileName.lastIndexOf("""));
48. String name = request.getParameter("head");
49. System.out.println(name);
50. //存储文件 利用part的api将临时文件写入目标文件
51. part.write("d:/"+fileName);
52. }
53. System.out.println("-----------------------");
54. }
55. }
56.  
57. /**
58. * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
59. */
60. protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
61. // TODO Auto-generated method stub
62. doGet(request, response);
63. }
64.  
65. }