java程序在tomcat环境下读取配置文件
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
web.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>
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