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【Java】 java读取Properties文件及赋值

作者:乔依 / 发布于2016/11/30/ 692

读取文件的类EmailProperRead（一个完整文件，可以直接复制使用）：

package com.uniquedu.util;  
  
一、读取文件的类EmailProperRead
import java.io.File;  
import java.io.FileInputStream;  
import java.util.Properties;  
  
import javax.servlet.http.HttpServletRequest;  
  
import org.springframework.web.context.request.RequestContextHolder;  
import org.springframework.web.context.request.ServletRequestAttributes;  
  
  
public class EmailProperRead {  
    public String iniPath = "/WEB-INF/systemConfig.Properties"; //文件路径  
    public Properties properties = new Properties();  
    @SuppressWarnings("deprecation")  
    public EmailProperRead() throws Exception{  
        HttpServletRequest request =  ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();  
          
        iniPath = request.getRealPath("/")+iniPath;  
          
        File file = new File(iniPath);  
        if(!file.exists()){  
            file.createNewFile();  
        }  
        properties.load(new FileInputStream(iniPath));  
    }  
      
}  




二、取值：

Properties props = new Properties(); // 获取系统环境  
//获取邮箱配置信息  
final Properties properties = new EmailProperRead().properties;  
//发送邮件时显示的发件人名称  
String personalName = properties.getProperty("emailName");  
// 发件人的邮箱用户名  
final String usernames = properties.getProperty("emailAddress");  
// 发件人的邮箱密码  
final String passwords = properties.getProperty("emailPaswd");  
// 邮箱服务器  
String host = properties.getProperty("smtpAddress");  
//邮件主题  
String mail_subject = properties.getProperty("emailTheme");  


三、赋值并保存文件：

Properties properties = new EmailProperRead().properties;  
//发送邮件时显示的发件人名称  
properties.setProperty("emailName", request.getParameter("emailName"));  
//发件人的邮箱地址  
properties.setProperty("emailAddress", request.getParameter("emailAddress"));  
//发件人的邮箱密码  
properties.setProperty("emailPaswd", request.getParameter("emailPaswd"));  
//邮箱服务器  
properties.setProperty("smtpAddress", request.getParameter("smtpAddress"));  
//邮件主题  
properties.setProperty("emailTheme", request.getParameter("emailTheme"));  
properties.store(new FileOutputStream(new EmailProperRead(systemType).iniPath),"");

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