PropertiesUtil.java

package com.vcredit.ddcash.batch.util;

import java.io.*;
import java.util.Properties;

import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;

public class PropertiesUtil {

private static final Logger logger = Logger.getLogger(PropertiesUtil.class);

/***
* 根据配置名获取配置信息
*
* @return
*/
public static String getPropertiesByName(String name) {
String value = null; //配置文件的值
Properties pro = new Properties();
try {
InputStream in = new FileInputStream("ddcash.properties");
BufferedReader bf = new BufferedReader(new InputStreamReader(in));
pro.load(bf);
in.close();
value = pro.getProperty(name);
} catch (Exception e) {
logger.error("获取配置文件失败：" + e.getMessage());
}
logger.debug("配置信息 ：" + name + ":" + value);
return value;
}

/***
* 根据配置名获取配置信息
*
* @return
*/
public static String getPropertiesByName(String name, String fileName) {
String value = null; //配置文件的值
Properties pro = new Properties();
try {
InputStream in = new FileInputStream(fileName);
BufferedReader bf = new BufferedReader(new InputStreamReader(in));
pro.load(bf);
in.close();
value = pro.getProperty(name);
} catch (Exception e) {
logger.error("获取配置文件失败：" + e.getMessage() + "，文件名：" + fileName);
}
logger.debug("配置信息 ：" + name + ":" + value);
return value;
}

/**
* 保存内容到配置文件
*/
public static void saveProperty(String propKey, String propVal, String fileName) {
if (StringUtils.isAnyBlank(propKey, propVal, fileName)) {
throw new RuntimeException("参数不能为空");
}
BufferedReader bf = null;
BufferedWriter bw = null;
try {
bf = new BufferedReader(new InputStreamReader(new FileInputStream(fileName)));
Properties pro = new Properties();
pro.load(bf);
pro.setProperty(propKey, propVal);
bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(fileName)));
pro.store(bw, "#最后一次处理到的客户ID");
} catch (Exception e) {
logger.error("保存Key【" + propKey + "】，Value【" + propVal + "】到配置文件【" + fileName + "】发生异常", e);
} finally {
try {
if (null != bf) {
bf.close();
}
if (null != bw) {
bw.close();
}
} catch (IOException e) {
logger.error("关闭IO流发生异常", e);
}
}
}
}