Java Web读取properties配置文件

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java action读取src目录下的properties配置文件。

mailServer.properties配置文件如下：

mailServerHost = smtp.163.commailServerPort = 25authValidate = trueuserName = test@163.com

读取配置文件类GetProperty代码如下：

package com.hsinghsu.test.action;import java.io.IOException;import java.io.InputStream;import java.util.Properties;public class GetProperty {// 方法一：通过java.util.ResourceBundle读取资源属性文件public static String getPropertyByName(String path, String name) {String result = "";try {// 方法一：通过java.util.ResourceBundle读取资源属性文件result = java.util.ResourceBundle.getBundle(path).getString(name);System.out.println("name:" + result);} catch (Exception e) {System.out.println("getPropertyByName2 error:" + name);}return result;}// 方法二：通过类加载目录getClassLoader()加载属性文件public static String getPropertyByName2(String path, String name) {String result = "";// 方法二：通过类加载目录getClassLoader()加载属性文件InputStream in = GetProperty.class.getClassLoader().getResourceAsStream(path);// InputStream in =// this.getClass().getClassLoader().getResourceAsStream("mailServer.properties");// 注：Object.class.getResourceAsStream在action中调用报错，在普通java工程中可用// InputStream in =// Object.class.getResourceAsStream("/mailServer.properties");Properties prop = new Properties();try {prop.load(in);result = prop.getProperty(name).trim();System.out.println("name:" + result);} catch (IOException e) {System.out.println("读取配置文件出错");e.printStackTrace();}return result;}}

action代码如下：

调用action，即可获取相应配置文件的属性值。

package com.hsinghsu.test.action;import com.opensymphony.xwork2.ActionSupport;public class TestAction extends ActionSupport {private static final long serialVersionUID = 3348881101306356364L;public String test(){System.out.println("=="+GetProperty.getPropertyByName("mailServer","userName"));System.out.println("==>>"+GetProperty.getPropertyByName2("mailServer.properties","userName"));////以下参数从properties文件读取//String mailServerHost = null; // 发送邮件的服务器的IP//String mailServerPort = null; // 发送邮件的服务器端口//String userName = null; // 登陆邮件发送服务器的用户名//boolean authValidate = false; // 是否需要身份验证////try {////方法一：通过java.util.ResourceBundle读取资源属性文件//mailServerHost = java.util.ResourceBundle.getBundle("mailServer").getString("mailServerHost");//System.out.println("mailServerHost:"+mailServerHost);//} catch (Exception e) {//System.out.println("mailServerHost error:"+mailServerHost);//}//////方法二：通过类加载目录getClassLoader()加载属性文件////InputStream in = TestAction.class.getClassLoader().getResourceAsStream("mailServer.properties");//InputStream in = this.getClass().getClassLoader().getResourceAsStream("mailServer.properties");//////注：Object.class.getResourceAsStream在action中调用报错，在普通java工程中可用////InputStream in = Object.class.getResourceAsStream("/mailServer.properties"); //Properties prop = new Properties();//try {//prop.load(in);//mailServerHost = prop.getProperty("mailServerHost").trim();//mailServerPort = prop.getProperty("mailServerPort").trim();//userName = prop.getProperty("userName").trim();//authValidate = prop.getProperty("authValidate").trim().equalsIgnoreCase("true");////System.out.println("mailServerHost:"+mailServerHost+" mailServerPort:"+mailServerPort+" userName:"+userName+" authValidate:"+authValidate);//} catch (IOException e) {//System.out.println("读取邮箱服务配置文件出错");//e.printStackTrace();//} //        return null;}}