从存储库中的 Jar 获取文件,而无需从 Java 下载整个 Jar
我想访问存储库中的 jar 文件,在其中搜索某些文件,检索这些文件并将它们存储在我的硬盘上。我不想下载整个罐子然后再搜索它。
假设我有 Jar 的地址。有人可以为我提供其余问题的代码吗?
public void searchInsideJar(final String jarUrl, final String artifactId,
final String artifactVersion) {
InputStream is = null;
OutputStream outStream = null;
JarInputStream jis = null;
int i = 1;
try {
String strDirectory = "C:/Users/ilijab/" + artifactId +artifactVersion;
// Create one directory
boolean success = (new File(strDirectory)).mkdir();
if (success) {
System.out.println("Directory: " + strDirectory + " created");
}
is = new URL(jarUrl).openStream();
jis = new JarInputStream(is);
while (true) {
JarEntry ent = jis.getNextJarEntry();
if (ent == null) {
break;
}
if (ent.isDirectory()) {
continue;
}
if (ent.getName().contains("someFile")) {
outStream = new BufferedOutputStream(new FileOutputStream(
strDirectory + "\\" + "someFile" + i));
while(ent.)
System.out.println("**************************************************************");
System.out.println(i);
i++;
}
}
} catch (Exception ex) {
}
}
那么,在上面的代码中,如何将我找到的文件(最后一个 if)保存到目录中。
I would like to access the jar file on the repository, search inside it for the certain files, retrieve those files and store them on my hard disc. I don't want to download the whole jar and then to search for it.
So let's assume I have the address of the Jar. Can someone provide me with the code for the rest of the problem?
public void searchInsideJar(final String jarUrl, final String artifactId,
final String artifactVersion) {
InputStream is = null;
OutputStream outStream = null;
JarInputStream jis = null;
int i = 1;
try {
String strDirectory = "C:/Users/ilijab/" + artifactId +artifactVersion;
// Create one directory
boolean success = (new File(strDirectory)).mkdir();
if (success) {
System.out.println("Directory: " + strDirectory + " created");
}
is = new URL(jarUrl).openStream();
jis = new JarInputStream(is);
while (true) {
JarEntry ent = jis.getNextJarEntry();
if (ent == null) {
break;
}
if (ent.isDirectory()) {
continue;
}
if (ent.getName().contains("someFile")) {
outStream = new BufferedOutputStream(new FileOutputStream(
strDirectory + "\\" + "someFile" + i));
while(ent.)
System.out.println("**************************************************************");
System.out.println(i);
i++;
}
}
} catch (Exception ex) {
}
}
So, in upper code, how can I save the file I found(the last if) into directory.
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假设“存储库”指的是 Maven 存储库,那么恐怕这是无法完成的。 Maven 存储库允许您下载工件,例如 jar 文件,但不会为您查看它们的内部情况。
Assuming that by "repository", you mean a Maven repository, then i'm afraid this can't be done. Maven repositories let you download artifacts, like jar files, but won't look inside them for you.