cn.featherfly.web.servlet.ServletEnv Maven / Gradle / Ivy
package cn.featherfly.web.servlet;
import java.io.File;
import javax.servlet.ServletContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import cn.featherfly.common.exception.AssertStandardSys;
import cn.featherfly.common.lang.UriUtils;
/**
*
* servlet运行环境
*
*
* @author 钟冀
*/
public class ServletEnv {
private static final Logger LOGGER = LoggerFactory
.getLogger(ServletEnv.class);
private static final String WEBINF_PATH = "WEB-INF";
private static final String CLASSES_PATH = WEBINF_PATH + "/classes" ;
private static final String LIB_PATH = WEBINF_PATH + "/lib";
private static final ServletEnv env = new ServletEnv();
/**
*
* 初始化
*
* @param servletContext ServletContext
*/
public static void init(ServletContext servletContext) {
env.projectDir = servletContext.getRealPath("/");
LOGGER.debug("项目根目录：{}", env.projectDir);
env.webinfDir = new File(UriUtils.linkUri(env.projectDir + WEBINF_PATH)).getAbsolutePath();
LOGGER.debug("项目WEB-INF目录：{}", env.webinfDir);
env.classesDir = new File(UriUtils.linkUri(env.projectDir + CLASSES_PATH)).getAbsolutePath();
LOGGER.debug("项目classes目录：{}", env.classesDir);
env.libDir = new File(UriUtils.linkUri(env.projectDir + LIB_PATH)).getAbsolutePath();
LOGGER.debug("项目lib目录：{}", env.libDir);
}
/**
*
* 获取ServletEnv
*
* @return
*/
public static ServletEnv getEnv() {
AssertStandardSys.isNotEmpty(env.projectDir, "ServletEnv还没有初始化");
return env;
}
private String projectDir;
private String classesDir;
private String webinfDir;
private String libDir;
/**
* 返回projectDir
* @return projectDir
*/
public String getProjectDir() {
return projectDir;
}
/**
* 返回classesDir
* @return classesDir
*/
public String getClassesDir() {
return classesDir;
}
/**
* 返回webinfDir
* @return webinfDir
*/
public String getWebinfDir() {
return webinfDir;
}
/**
* 返回libDir
* @return libDir
*/
public String getLibDir() {
return libDir;
}
}