1. 首先，工程结构如下：
注：
a. 蓝色标注的两个文件是和com包平级的，都在src下。EnnNotificationPushProxy.ini是这个工程的配置文件，log4j.properties是log4j的配置文件。
b. 红色标注的两个文件，ConfigUtil.java是用来读取EnnNotificationPushProxy.ini的，LogUtil.java是读取log4j.properties的。
2. ConfigUtil.java内容：
package com.ecity.enn.notification.proxy.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Properties;
public class ConfigUtil {
private static final String INI_FILE_NAME = "/EnnNotificationPushProxy.ini";
private static HashMap<String, String> propertyMap = null;
static {
propertyMap = new HashMap<String, String>();
String path = URLUtil.getClassPath(ConfigUtil.class) + INI_FILE_NAME;
LogUtil.debug("EnnNotificationPushProxy.ini path=" + path);
File file = new File(path);
FileInputStream inStream = null;
try {
inStream = new FileInputStream(file);
} catch (FileNotFoundException e) {
LogUtil.error(e);
}
Properties properties = new Properties();
try {
properties.load(inStream);
} catch (IOException e) {
LogUtil.error(e);
}
@SuppressWarnings("unchecked")
Enumeration<String> keys = (Enumeration<String>) properties.propertyNames();
while (keys.hasMoreElements()) {
String key = keys.nextElement();
propertyMap.put(key.toLowerCase(), properties.getProperty(key));
}
}
public static String get(String key) {
return propertyMap.get(key.toLowerCase());
}
public static int getInt(String key) {
String valueStr = propertyMap.get(key.toLowerCase());
int value = 0;
try {
value = Integer.valueOf(valueStr);
} catch (Exception e) {
LogUtil.error(e);
value = 0;
}
return value;
}
public static long getLong(String key) {
String valueStr = propertyMap.get(key.toLowerCase());
long value = 0;
try {
value = Long.valueOf(valueStr);
} catch (Exception e) {
LogUtil.error(e);
value = 0;
}
return value;
}
public static void set(String key, String value) {
if (get(key) == null) {
propertyMap.put(key, value);
}
}
}
3. LogUtil.java内容：
package com.ecity.enn.notification.proxy.util;
import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;
public class LogUtil {
private static final Logger logger;
private static final String INI_FILE_NAME = "/log4j.properties";
private static final String TAG = "EnnNotificationPushProxy";
static {
System.out.println("ProjectHomePath=" + URLUtil.getProjectHomePath());
System.setProperty("WORKDIR", URLUtil.getProjectHomePath());
String path = URLUtil.getClassPath(LogUtil.class) + INI_FILE_NAME;
PropertyConfigurator.configure(path);
logger = Logger.getLogger(TAG);
}
public static void debug(Object message) {
logger.info(message);
}
public static void debug(String message, Throwable e) {
logger.info(message, e);
}
public static void info(String message) {
logger.info(message);
}
public static void info(String message, Throwable e) {
logger.info(message, e);
}
public static void error(String message) {
logger.error(message);
}
public static void error(Object message, Throwable e) {
logger.error(message, e);
}
public static void error(Throwable e) {
logger.error("", e);
}
}
注：注意WORKDIR的值的设置。它的值是当前工程的位置。
4. log4j.properties内容：
log4j.rootLogger=ALL, ServerDailyRollingFile, stdout
log4j.appender.ServerDailyRollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.ServerDailyRollingFile.DatePattern='.'yyyy-MM-dd
log4j.appender.ServerDailyRollingFile.File=${WORKDIR}/logs/EnnNotificationPushProxy.log
log4j.appender.ServerDailyRollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.ServerDailyRollingFile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %p [%c] %m%n
log4j.appender.ServerDailyRollingFile.Append=true
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %p [%c] %m%n
注：注意WORKDIR变量的使用。这个配置下，logs文件生成在工程的根目录。
5. 在ConfigUtil.java和LogUtil.java中，都使用到了URLUtil类。如下：
package com.ecity.enn.notification.proxy.util;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.net.URL;
/**
* <p>
* Title:URL辅助工具类
* </p>
*/
public class URLUtil {
/**
*
* Description:取得当前类所在的文件
*/
public static File getClassFile(Class<?> clazz) {
URL path = clazz.getResource(clazz.getName().substring(clazz.getName().lastIndexOf(".") + 1) + ".class");
if (path == null) {
String name = clazz.getName().replaceAll("[.]", "/");
path = clazz.getResource("/" + name + ".class");
}
return new File(path.getFile());
}
/**
* Description:同getClassFile 解决中文编码问题
*/
public static String getClassFilePath(Class<?> clazz) {
try {
return java.net.URLDecoder.decode(getClassFile(clazz).getAbsolutePath(), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return "";
}
}
/**
*
* Description:取得当前类所在的ClassPath目录
*
* @param clazz
* @return
* @mail sunyujia@yahoo.cn
* @since：Sep 21, 2008 12:32:27 PM
*/
public static File getClassPathFile(Class<?> clazz) {
File file = getClassFile(clazz);
for (int i = 0, count = clazz.getName().split("[.]").length; i < count; i++)
file = file.getParentFile();
if (file.getName().toUpperCase().endsWith(".JAR!")) {
file = file.getParentFile();
}
return file;
}
/**
*
* Description: 同getClassPathFile 解决中文编码问题
*
* @param clazz
* @return
* @mail sunyujia@yahoo.cn
* @since：Sep 21, 2008 1:10:37 PM
*/
public static String getClassPath(Class<?> clazz) {
try {
return java.net.URLDecoder.decode(getClassPathFile(clazz).getAbsolutePath(), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return "";
}
}
public static String getProjectHomePath() {
String path = getClassPath(URLUtil.class);
String webAppPath = path.substring(0, path.toUpperCase().lastIndexOf("WEB-INF")).replaceAll("%20", " ");
return webAppPath;
}
public static void main(String[] args) throws UnsupportedEncodingException {
System.out.println(getClassFilePath(URLUtil.class));
System.out.println(getClassPath(URLUtil.class));
}
}
6. 最终部署结果：
a. 两个配置文件的位置在classes下。如下：
b. logs文件夹在项目根目录下。log文件在logs文件夹下。如下：
