java程序在tomcat環境下讀取配置文件

package com.xiejiaohui.core;

import java.io.InputStream;

public class FileProperties extends java.util.Properties {

	private static final long serialVersionUID = 1L;

	public FileProperties() {
		super();
	}

	public FileProperties(String fileName) {
		super();
		try {
			InputStream inputStream = this.getClass().getResourceAsStream(
					fileName);
			this.load(inputStream);
			inputStream.close();
		} catch (Exception e) {
			System.err.println("Exception in FileProperties(String fileName): "
					+ e.toString() + " for fileName: " + fileName);
		}
	}

	public FileProperties(java.util.Properties defaults) {
		super(defaults);
	}

}

package com.xiejiaohui.core;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class MyServlet extends HttpServlet {

	private static FileProperties fileProperties = null;
	private static FileProperties fileProperties2 = null;

	static {
		try {
			fileProperties = new FileProperties("/config.properties");
			fileProperties2 = new FileProperties("/config/config2.properties");
		} catch (Exception e) {
			System.err.println("MyServlet: get config.properties error!");
		}
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		process(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		process(request, response);
	}

	private void process(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		System.out.println("name: " + fileProperties.get("name"));
		System.out.println("age: " + fileProperties.get("age"));
		System.out.println("name2: " + fileProperties2.get("name2"));
		System.out.println("age2: " + fileProperties2.get("age2"));
	}

}

/test/src/config/config2.properties

name2=xiejiaohui******2
age2=36******2

/test/src/config.properties

name=xiejiaohui\u8C22\u59E3\u8F89
age=36 \u5E74\u9F84

[/code]

web.xml

[code="xml"]
<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                      http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
  version="3.0"
  metadata-complete="true">

    <servlet>
      <servlet-name>MyServlet</servlet-name>
      <servlet-class>com.xiejiaohui.core.MyServlet</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>MyServlet</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

</web-app>