java工具类获取properties文件的配置

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Properties;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public final class AppConfig {

private static final Log logger = LogFactory.getLog(AppConfig.class);

private static final String FILE_NAME = "xwcg.properties";

private static AppConfig sdkConfig = null;

/**
* 网关请求地址
*/
private String xwcgGatewayUrl;

/**
* 存管直连地址
*/
private String xwcgServiceUrl;

/**
*存管对账文件下载地址
*/
private String xwcgDownloadUrl;

/**
* 平台编号
*/
private String platformNo;

/**
* 证书编号
*/
private String keySerial;

/**
* 平台私钥
*/
private String privateKey;

/**
* 平台公钥
*/
private String publicKey;

/**
* 私钥
*/
private String lmPrivateKey;

/**
* 公钥
*/
private String lmPublicKey;

/**
* 连接超时
*/
private int connectionTimeout;

/**
* 获取数据超时
*/
private int readTimeout;

private AppConfig() {
this.loadPropertiesFromSrc();
}

public static AppConfig getConfig() {
synchronized (AppConfig.class) {
if (null == sdkConfig) {
sdkConfig = new AppConfig();
}
return sdkConfig;
}
}

private void loadPropertiesFromSrc() {
InputStream in = null;
try {
Properties properties = null;
logger.info("从classpath: "+ AppConfig.class.getClassLoader().getResource("").getPath() + " 获取属性文件" + FILE_NAME);
in = AppConfig.class.getClassLoader().getResourceAsStream(FILE_NAME);
if (null != in) {
BufferedReader bf = new BufferedReader(new InputStreamReader(in, "utf-8"));
properties = new Properties();
try {
properties.load(bf);
} catch (IOException e) {
throw e;
}
} else {
logger.error(FILE_NAME+ "属性文件未能在classpath指定的目录下 "+ AppConfig.class.getClassLoader().getResource("").getPath() + " 找到!");
return;
}
loadProperties(properties);
} catch (IOException e) {
e.printStackTrace();
} finally {
if (null != in) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}

/**
* 根据传入的properties对象设置配置参数
*
* @param pro
*/
private void loadProperties(Properties pro) {
logger.info("开始从属性文件中加载配置项");
String value = null;
value = pro.getProperty("xwcgGatewayUrl");
if (!StringUtils.isEmpty(value)) {
this.xwcgGatewayUrl = value.trim();
}
value = pro.getProperty("xwcgServiceUrl");
if (!StringUtils.isEmpty(value)) {
this.xwcgServiceUrl = value.trim();
}
value = pro.getProperty("xwcgDownloadUrl");
if (!StringUtils.isEmpty(value)) {
this.xwcgDownloadUrl = value.trim();
}
value = pro.getProperty("platformNo");
if (!StringUtils.isEmpty(value)) {
this.platformNo = value.trim();
}
value = pro.getProperty("keySerial");
if (!StringUtils.isEmpty(value)) {
this.keySerial = value.trim();
}
value = pro.getProperty("privateKey");
if (!StringUtils.isEmpty(value)) {
this.privateKey = value.trim();
}
value = pro.getProperty("publicKey");
if (!StringUtils.isEmpty(value)) {
this.publicKey = value.trim();
}
value = pro.getProperty("lmPrivateKey");
if (!StringUtils.isEmpty(value)) {
this.lmPrivateKey = value.trim();
}
value = pro.getProperty("lmPublicKey");
if (!StringUtils.isEmpty(value)) {
this.lmPublicKey = value.trim();
}
value = pro.getProperty("connectionTimeout");
if (!StringUtils.isEmpty(value)) {
this.connectionTimeout = Integer.valueOf(value.trim());
}
value = pro.getProperty("readTimeout");
if (!StringUtils.isEmpty(value)) {
this.readTimeout = Integer.valueOf(value.trim());
}

}

public String getXwcgGatewayUrl() {
return xwcgGatewayUrl;
}

public void setXwcgGatewayUrl(String xwcgGatewayUrl) {
this.xwcgGatewayUrl = xwcgGatewayUrl;
}

public String getXwcgServiceUrl() {
return xwcgServiceUrl;
}

public void setXwcgServiceUrl(String xwcgServiceUrl) {
this.xwcgServiceUrl = xwcgServiceUrl;
}

public String getXwcgDownloadUrl() {
return xwcgDownloadUrl;
}

public void setXwcgDownloadUrl(String xwcgDownloadUrl) {
this.xwcgDownloadUrl = xwcgDownloadUrl;
}

public String getPlatformNo() {
return platformNo;
}

public void setPlatformNo(String platformNo) {
this.platformNo = platformNo;
}

public String getKeySerial() {
return keySerial;
}

public void setKeySerial(String keySerial) {
this.keySerial = keySerial;
}

public String getPrivateKey() {
return privateKey;
}

public void setPrivateKey(String privateKey) {
this.privateKey = privateKey;
}

public int getConnectionTimeout() {
return connectionTimeout;
}

public void setConnectionTimeout(int connectionTimeout) {
this.connectionTimeout = connectionTimeout;
}

public int getReadTimeout() {
return readTimeout;
}

public void setReadTimeout(int readTimeout) {
this.readTimeout = readTimeout;
}

public String getPublicKey() {
return publicKey;
}

public void setPublicKey(String publicKey) {
this.publicKey = publicKey;
}

public String getLmPrivateKey() {
return lmPrivateKey;
}

public void setLmPrivateKey(String lmPrivateKey) {
this.lmPrivateKey = lmPrivateKey;
}

public String getLmPublicKey() {
return lmPublicKey;
}

public void setLmPublicKey(String lmPublicKey) {
this.lmPublicKey = lmPublicKey;
}
}