Android --- Http協議，解析服務器中給定的XML文件時的權限問題

Android --- Http協議，解析服務器中給定的XML文件時的權限問題。

如題：要求使用Http協議中的POST方法，解析存在服務器中的XML文件。

服務器使用的是Tomcat搭建，在webapp目錄下自定義一個xml文件。

1. <?xml version="1.0" encoding="utf-8"?>
2. <error_logs>
4. <log>
5. <id name="id">1</id>
6. <date name="date">2012-04-04 15:45</date>
7. <from name = "from">the error from 1</from>
8. <subject name="subject">subject1</subject>
9. <content name="content">content aaaaaaaaaaaaaaaa</content>
10. </log>
12. <log>
13. <id name="id">2</id>
14. <date name="date">2012-03-12 11:33</date>
15. <from name = "from">the_error_from_2</from>
16. <subject name="subject">subject2</subject>
17. <content name="content">content bbbbbbbbbbbbbbbbbbb</content>
18. </log>
20. <log>
21. <id name="id">3</id>
22. <date name="date">2012-03-02 01:00</date>
23. <from name = "from">the_error_from_3</from>
24. <subject name="subject">subject3</subject>
25. <content name="content">content cccccccccccccccccccc</content>
26. </log>
28. </error_logs>

疑點：這個xml文件，只要是開著服務器，在浏覽器中直接輸入地址就訪問，那麼如何屏蔽這種直接訪問？

辦法：

1、寫一個過濾類

1. package me.lechao;
3. import java.io.BufferedReader;
4. import java.io.File;
5. import java.io.FileInputStream;
6. import java.io.IOException;
7. import java.io.InputStreamReader;
8. import java.io.PrintWriter;
10. import javax.servlet.Filter;
11. import javax.servlet.FilterChain;
12. import javax.servlet.FilterConfig;
13. import javax.servlet.ServletException;
14. import javax.servlet.ServletRequest;
15. import javax.servlet.ServletResponse;
16. import javax.servlet.http.HttpServletRequest;
17. import javax.servlet.http.HttpServletResponse;
19. public class IsLogin implements Filter {
20. FilterConfig filterConfig;
22. @Override
23. public void destroy() {
24. this.filterConfig = null;
25. }
27. @Override
28. public void doFilter(ServletRequest arg0, ServletResponse arg1,
29. FilterChain arg2) throws IOException, ServletException {
30. HttpServletRequest req = (HttpServletRequest) arg0;
31. HttpServletResponse res = (HttpServletResponse) arg1;
33. String username = req.getParameter("username");
34. String password = req.getParameter("password");
36. PrintWriter out = res.getWriter();
38. if ("1591408983".equals(username) && "123456".equals(password)) {
39. //驗證成功可以訪問，屏蔽23456萬字
40. } else {

1. out.print("the username or password is error!");
2. }
3. out.flush();
4. out.close();
5. }
7. @Override
8. public void init(FilterConfig arg0) throws ServletException {
9. this.filterConfig = arg0;
10. }
12. }