130 lines
2.8 KiB
Java
Executable File
130 lines
2.8 KiB
Java
Executable File
package db;
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import java.io.InputStream;
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import java.io.UnsupportedEncodingException;
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import java.util.Properties;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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/**
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* 读取Properties综合类,默认绑定到classpath下的config.properties文件。
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*/
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public class PropertiesUtilDB {
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private static Logger logger = LogManager.getLogger(PropertiesUtilDB.class);
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private static String CONFIG_FILENAME = "config/db.properties";
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private static Properties prop = null;
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public PropertiesUtilDB() {
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if (prop == null) {
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loadProperties();
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}
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};
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private synchronized static void loadProperties() {
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byte buff[] = null;
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try {
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// Open the props file
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InputStream is = PropertiesUtilDB.class.getResourceAsStream("/" + CONFIG_FILENAME);
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prop = new Properties();
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// Read in the stored properties
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prop.load(is);
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} catch (Exception e) {
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System.err.println("读取配置文件失败！！！");
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prop = null;
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logger.error(e.getMessage(), e);
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}
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}
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/**
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* 得到属性值
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*
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* @param key
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* @return
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*/
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public static String getProperty(String key) {
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if (prop == null) {
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loadProperties();
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}
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String value = prop.getProperty(key);
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if (value == null) {
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return null;
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}
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return value.trim();
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}
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/**
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* 得到内容包含汉字的属性值
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*
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* @param key
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* @return
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*/
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public static String getGBKProperty(String key) {
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String value = getProperty(key);
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try {
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value = new String(value.getBytes("ISO8859-1"), "GBK");
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} catch (UnsupportedEncodingException e) {
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}
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if (value == null) {
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return null;
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}
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return value.trim();
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}
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/**
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* 得到属性值，
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*
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* @param key
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* @param defaultValue
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* @return
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*/
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public static String getProperty(String key, String defaultValue) {
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if (prop == null) {
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loadProperties();
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}
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String value = prop.getProperty(key, defaultValue);
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if (value == null) {
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return null;
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}
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return value.trim();
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}
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/**
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* 得到内容包含汉字的属性值，如果不存在则使用默认值
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*
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* @param key
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* @return
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*/
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public static String getGBKProperty(String key, String defaultValue) {
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try {
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defaultValue = new String(defaultValue.getBytes("GBK"), "ISO8859-1");
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String value = getProperty(key, defaultValue);
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value = new String(value.getBytes("ISO8859-1"), "GBK");
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if (value == null) {
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return null;
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}
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return value.trim();
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} catch (UnsupportedEncodingException e) {
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return null;
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}
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}
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public static String getUTFProperty(String key, String defaultValue) {
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try {
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defaultValue = new String(defaultValue.getBytes("UTF-8"), "ISO8859-1");
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String value = getProperty(key, defaultValue);
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value = new String(value.getBytes("ISO8859-1"), "UTF-8");
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if (value == null) {
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return null;
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}
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return value.trim();
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} catch (UnsupportedEncodingException e) {
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return null;
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}
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}
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} |