读取操作属性配置文件

淩亂°似流年 2022-08-27 11:59 244阅读 0赞

从资源文件里读取值的类，文件后缀不一定要.Properties，只要里面内容如：url=www.cnsec.net  
可通过key（url）取得值-www.cnsec.net，简单、强大

import java.io.File;  
import java.io.FileInputStream;  
import java.io.FileNotFoundException;  
import java.io.IOException;  
import java.util.Properties;  
/\*\*  
 \* ReadProperties.java  
 \* Description: 读取操作属性配置文件  
 \* @author li.b  
 \* @version 2.0  
 \* Jun 26, 2008  
 \*/  
public class ReadProperties \{

/\*\*  
     \* Description: 获取属性配置文件  
     \* @param path 资源文件路径  
     \* @return    Properties Object  
     \* @throws FileNotFoundException  
     \* @throws IOException  
     \*/  
    public static Properties getProperties(String path) throws FileNotFoundException, IOException\{  
        Properties props = null;  
        File file = new File(path);  
        if(file.exists() && file.isFile())\{  
            props = new Properties();  
            props.load(new FileInputStream(file));  
        \}else\{  
            System.out.println(file.toString() + "不存在！");  
        \}  
        return props;  
    \}  
     
    /\*\*  
     \* Description: 从属性文件获取值  
     \* @param props Properties Object  
     \* @param key  
     \* @return 通过key匹配到的value  
     \*/  
    public static String getValue(Properties props,String key,String encod)\{  
        String result = "";  
        String en = "";  
        String localEN = System.getProperty("file.encoding");  
        if(encod !=null && !encod.equals("") )\{  
            en = encod;  
        \}else\{  
            en = localEN;  
        \}  
        try \{  
            key = new String(key.getBytes(en),"ISO-8859-1");  
            result = props.getProperty(key);  
            if(!result.equals(""))\{  
                    result = new String(result.getBytes("ISO-8859-1"),en);                 
            \}  
        \} catch (Exception e) \{  
        \}finally\{  
            if(result == null)result = "";  
            return result;  
        \}  
    \}  
     
    public static String getValue(Properties props,String key)\{  
        return getValue(props, key, "");  
    \}