Android --- Http协议,解析服务器中给定的XML文件时的权限问题
Android --- Http协议,解析服务器中给定的XML文件时的权限问题
Android --- Http协议,解析服务器中给定的XML文件时的权限问题。
如题:要求使用Http协议中的POST方法,解析存在服务器中的XML文件。
服务器使用的是Tomcat搭建,在webapp目录下自定义一个xml文件。
- <?xml version="1.0" encoding="utf-8"?>
- <error_logs>
- <log>
- <id name="id">1</id>
- <date name="date">2012-04-04 15:45</date>
- <from name = "from">the error from 1</from>
- <subject name="subject">subject1</subject>
- <content name="content">content aaaaaaaaaaaaaaaa</content>
- </log>
- <log>
- <id name="id">2</id>
- <date name="date">2012-03-12 11:33</date>
- <from name = "from">the_error_from_2</from>
- <subject name="subject">subject2</subject>
- <content name="content">content bbbbbbbbbbbbbbbbbbb</content>
- </log>
- <log>
- <id name="id">3</id>
- <date name="date">2012-03-02 01:00</date>
- <from name = "from">the_error_from_3</from>
- <subject name="subject">subject3</subject>
- <content name="content">content cccccccccccccccccccc</content>
- </log>
- </error_logs>
疑点:这个xml文件,只要是开着服务器,在浏览器中直接输入地址就访问,那么如何屏蔽这种直接访问?
办法:
1、写一个过滤类
- package me.lechao;
- import java.io.BufferedReader;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.InputStreamReader;
- import java.io.PrintWriter;
- import javax.servlet.Filter;
- import javax.servlet.FilterChain;
- import javax.servlet.FilterConfig;
- import javax.servlet.ServletException;
- import javax.servlet.ServletRequest;
- import javax.servlet.ServletResponse;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- public class IsLogin implements Filter {
- FilterConfig filterConfig;
- @Override
- public void destroy() {
- this.filterConfig = null;
- }
- @Override
- public void doFilter(ServletRequest arg0, ServletResponse arg1,
- FilterChain arg2) throws IOException, ServletException {
- HttpServletRequest req = (HttpServletRequest) arg0;
- HttpServletResponse res = (HttpServletResponse) arg1;
- String username = req.getParameter("username");
- String password = req.getParameter("password");
- PrintWriter out = res.getWriter();
- if ("1591408983".equals(username) && "123456".equals(password)) {
- //验证成功可以访问,屏蔽23456万字
- } else {
- out.print("the username or password is error!");
- }
- out.flush();
- out.close();
- }
- @Override
- public void init(FilterConfig arg0) throws ServletException {
- this.filterConfig = arg0;
- }
- }
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