发布jar包到服务器读取resource目录下文件
分类:
IT文章
•
2022-08-30 20:12:30
* 解决：当项目打包成jar之后resources路径下面的证书文件访问不到
* 思路：
* 1、运行时先复制一个jar
* 2、将复制的jar解压到jar文件目录
* 3、删除复制的jar跟解压的非证书文件夹
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package blockchaincode;
import blockchaincode.utils.CryptoUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import blockchaincode.utils.TempCryptoFolderUtil;
import com.sunsheen.jfids.das.core.DasApplication;
import com.sunsheen.jfids.das.core.annotation.DasBootApplication;
/**
*
* 当独立开发HKDAS应用时（Java工程、Maven工程），使用这种方式启动应用。
* @author WangSong
*
*/
@DasBootApplication()
public class DasApplicationBootstrap {
private static Logger log = LoggerFactory.getLogger(DasApplicationBootstrap.class);
public static void main(String[] args) {
//将证书文件拷贝到项目同级目录下
try {
CryptoUtil.pass();
} catch (Exception e) {
e.printStackTrace();
log.error("当前jar包目录の证书文件拷贝异常！", e);
System.err.println("证书文件拷贝异常！");
}
//启动
DasApplication.run(DasApplicationBootstrap.class, args);
}
}
View Code
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package blockchaincode.utils;
import java.io.File;
import java.net.URL;
import org.apache.derby.impl.tools.sysinfo.Main;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* 解决：当项目打包成jar之后resources路径下面的证书文件访问不到
* 思路：
* 1、运行时先复制一个jar
* 2、将复制的jar解压到jar文件目录
* 3、删除复制的jar跟解压的非证书文件夹
* @author WangSong
*/
public class CryptoUtil {
private static Logger log = LoggerFactory.getLogger(CryptoUtil.class);
private CryptoUtil(){}
public static void pass()throws Exception{
/** 获取当前jar位置 **/
URL url = Main.class.getClassLoader().getResource("crypto-config/");
//当前需要是个jar文件
String protocol = url.getProtocol();//大概是jar
if (!"jar".equalsIgnoreCase(protocol)) {
log.error("没有以jar运行，不重复生成证书文件。");
return;
}
// jar:file:/home/hkdas-123/HKDAS/app/blockchaincode-provider-1.0.0-jar-with-dependencies.jar!/
String jarPath = url.toString().substring(0, url.toString().indexOf("!/") + 2);
/** 将jar复制一份到当前文件夹 **/
String oldJar = jarPath.substring(jarPath.indexOf("/"),jarPath.lastIndexOf("!/"));
String jarFolder = oldJar.substring(0,oldJar.indexOf("blockchaincode"));
String copiedJar = jarFolder + "copied.jar";
JarUtil.copyJarByJarFile(new File(oldJar), new File(copiedJar));
/** 解压复制的jar文件 **/
JarUtil.unJarByJarFile(new File(copiedJar), new File(jarFolder));
/** 删除--除了证书文件夹和jar文件的所有文件夹 **/
deleteDir(jarFolder);
}
//清空文件夹下除了证书文件夹和jar文件的所有文件
private static boolean deleteDir(String path){
File file = new File(path);
if(!file.exists()){//判断是否待删除目录是否存在
// System.err.println("The dir are not exists!");
log.error("The dir are not exists!"+file.getAbsolutePath());
return false;
}
String[] content = file.list();//取得当前目录下所有文件和文件夹
for(String name : content){
File temp = new File(path, name);
if(temp.isDirectory()){
//如果是证书文件，不删除
if(name.contains("crypto-config"))
continue;
deleteDir(temp.getAbsolutePath());//递归调用，删除目录里的内容
temp.delete();//删除空目录
}else{
//如果是jar包，不删除
if(name.contains(".jar"))
continue;
if(!temp.delete()){//直接删除文件
// System.err.println("Failed to delete " + name);
log.error("Failed to delete " + name);
}
}
}
return true;
}
}
View Code
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package blockchaincode.utils;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Enumeration;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.jar.JarOutputStream;
import java.util.zip.ZipEntry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* jar包压缩跟解压工具类
* @author WangSong
*
*/
public class JarUtil {
private static Logger log = LoggerFactory.getLogger(JarUtil.class);
private JarUtil(){}
/**
* 复制jar by JarFile
* @param src
* @param des
* @throws IOException
*/
public static void copyJarByJarFile(File src , File des) throws IOException{
//重点
JarFile jarFile = new JarFile(src);
Enumeration<JarEntry> jarEntrys = jarFile.entries();
JarOutputStream jarOut = new JarOutputStream(new BufferedOutputStream(new FileOutputStream(des)));
byte[] bytes = new byte[1024];
while(jarEntrys.hasMoreElements()){
JarEntry entryTemp = jarEntrys.nextElement();
jarOut.putNextEntry(entryTemp);
BufferedInputStream in = new BufferedInputStream(jarFile.getInputStream(entryTemp));
int len = in.read(bytes, 0, bytes.length);
while(len != -1){
jarOut.write(bytes, 0, len);
len = in.read(bytes, 0, bytes.length);
}
in.close();
jarOut.closeEntry();
log.error("复制完成: " + entryTemp.getName());
}
jarOut.finish();
jarOut.close();
jarFile.close();
}
/**
* 解压jar文件by JarFile
* @param src
* @param desDir
* @throws FileNotFoundException
* @throws IOException
*/
public static void unJarByJarFile(File src , File desDir) throws FileNotFoundException, IOException{
JarFile jarFile = new JarFile(src);
Enumeration<JarEntry> jarEntrys = jarFile.entries();
if(!desDir.exists())
desDir.mkdirs(); //建立用户指定存放的目录
byte[] bytes = new byte[1024];
while(jarEntrys.hasMoreElements()){
ZipEntry entryTemp = jarEntrys.nextElement();
File desTemp = new File(desDir.getAbsoluteFile() + File.separator + entryTemp.getName());
if(entryTemp.isDirectory()){ //jar条目是空目录
if(!desTemp.exists())
desTemp.mkdirs();
log.error("makeDir" + entryTemp.getName());
}else{ //jar条目是文件
//因为manifest的Entry是"META-INF/MANIFEST.MF",写出会报"FileNotFoundException"
File desTempParent = desTemp.getParentFile();
if(!desTempParent.exists())desTempParent.mkdirs();
BufferedInputStream in = new BufferedInputStream(jarFile.getInputStream(entryTemp));
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(desTemp));
int len = in.read(bytes, 0, bytes.length);
while(len != -1){
out.write(bytes, 0, len);
len = in.read(bytes, 0, bytes.length);
}
in.close();
out.flush();
out.close();
log.error("解压完成: " + entryTemp.getName());
}
}
jarFile.close();
}
}
