记录下来吧，以前都没有记录，总是一味的去baidu。。
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, "");
}
/**
* 测试一下
* @param args
*/
public static void main(String[] args) {
String path = System.getProperty("user.dir") ;
System.out.println(path);
Properties props = null;
try {
props = getProperties(path+"\\webservice接口.txt");
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
String test = getValue(props, "监控告警");
System.out.println(test);
}
}