重写spring读取配置文件，读取加密配置文件代码,Java代码库,德仔网

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【Java】重写spring读取配置文件，读取加密配置文件

作者:yuyang_yuan / 发布于2015/8/10/ 699

配置文件des加密，然后读取配置文件时解密


	package com.templet.spring;
	
	import java.io.BufferedReader;
	import java.io.ByteArrayInputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.InputStreamReader;
	import java.util.Properties;
	
	import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
	import org.springframework.core.io.Resource;
	import org.springframework.util.DefaultPropertiesPersister;
	import org.springframework.util.PropertiesPersister;
	
	public class DecryptPropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer {
	 private Resource[] locations;
	
	 public void setLocations(Resource[] locations) {
	 this.locations = locations;
	 }
	
	 public void loadProperties(Properties props) throws IOException {
	 if (this.locations != null) {
	 PropertiesPersister propertiesPersister = new DefaultPropertiesPersister();
	 for (int i = 0; i < this.locations.length; i++) {
	 Resource location = this.locations[i];
	 if (logger.isInfoEnabled()) {
	 logger.info("Loading properties file from " + location);
	 }
	 InputStream is = null;
	 try {
	 is = location.getInputStream();
	 BufferedReader in = new BufferedReader(new InputStreamReader(is, "UTF-8"));
	 StringBuffer buffer = new StringBuffer();
	 String line = "";
	 while ((line = in.readLine()) != null) {
	 buffer.append(line);
	 }
	 String rs="";
	 if("dbconn.properties".equals(location.getFilename())){
	 DESUtil des = new DESUtil("1234567");
	 rs=des.decryptStr(buffer.toString());
	 }else{
	 rs =buffer.toString();
	 }
	 propertiesPersister.load(props, new ByteArrayInputStream(rs.getBytes()));
	 } finally {
	 if (is != null) {
	 is.close();
	 }
	 }
	 }
	 }
	 }
	}

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