假设我有一个文件夹，其中包含 Maven 项目中所需的所有 jar 文件。
我想从文件夹中的 jar 文件自动填充/写入 pom.xml 部分中的依赖项。是否有现有的自动化方法可以做到这一点？
如果文件夹中有 log4j-core-2.11.1.jar 文件，我想得到：
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.1</version>
</dependency>
谢谢你
@Jens：谢谢你，你的代码绝对有帮助（不能投票给你；低代表）
因为我想要一种快速的（至少对我来说）方法，所以我最终得到了几行Python： 他们在这里（如果他们能帮忙的话）
import sys
import json
from urllib.request import urlopen
import hashlib
from string import Template
from collections import namedtuple
from os import listdir
path = 'your path to jar folder'
files = listdir(path)
def hashfile(filepath):
f = open(filepath, 'rb')
readFile = f.read()
sha1Hash = hashlib.sha1(readFile)
sha1Hashed = sha1Hash.hexdigest()
return sha1Hashed
def request( hash ):
url = 'https://search.maven.org/solrsearch/select?q=1:' + \
hash+'&wt=json&rows=1'
response = urlopen(url).read()
return json.loads(response.decode('utf-8'));
dep = '''
<dependency>
<groupId> $g </groupId>
<artifactId> $a </artifactId>
<version> $v </version>
</dependency>
'''
deps= '''
<dependencies>
$d
</dependencies>
'''
deb_tpl = Template(dep)
debs_tpl = Template(deps)
Jar = namedtuple('Jar',[ 'g', 'a', 'v'])
dependencies = [None]*len(files)
for i, filename in enumerate(files):
sha1=hashfile( "%s/%s" %(path, filename))
print("File : %i : sha1 : %s" % (i, sha1))
obj = request( str(sha1 ))
if obj['response']['numFound'] == 1:
jar = Jar(obj['response']['docs'][0]['g'],
obj['response']['docs'][0]['a'],
obj['response']['docs'][0]['v'])
dependencies[i] = jar
# print(obj['response']['docs'][0]['a'])
# print(obj['response']['docs'][0]['g'])
# print(obj['response']['docs'][0]['v'])
else :
print('Cannot find %s' % filename)
dependencies[i] = None
deps_all = '\r\n'.join([ deb_tpl.substitute(f._asdict())for f in dependencies if f is not None ])
debs_tpl.substitute(d=deps_all)
print(res)
Final res 为我提供了在 search.maven 上找到的所有依赖项。 对于丢失的罐子，您可以使用这个答案
假设 jar 文件是 Maven 构建的结果，您可以从以下代码开始：
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Scanner;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
public class CheckMe {
public static void main(String args[]) throws IOException {
String fileZip =
"yourjar.jar";
ZipInputStream zis = new ZipInputStream(new FileInputStream(fileZip));
ZipEntry zipEntry = zis.getNextEntry();
while (zipEntry != null) {
if (zipEntry.getName().endsWith("pom.xml")) {
final StringBuilder pom = new StringBuilder();
final byte[] buffer = new byte[1024];
while (zis.read(buffer, 0, buffer.length) != -1) {
pom.append(new String(buffer));
}
System.out.println("<dependency>");
Scanner scanner = new Scanner(pom.toString());
boolean groupDone = false, artifactDone = false, versionDone = false;
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
if (line.contains("groupId") && !groupDone) {
System.out.println(line);
groupDone = true;
}
if (line.contains("artifactId") && !artifactDone) {
System.out.println(line);
artifactDone = true;
}
if (line.contains("version") && !versionDone) {
System.out.println(line);
versionDone = true;
}
}
scanner.close();
System.out.println("</dependency>");
}
zipEntry = zis.getNextEntry();
}
zis.closeEntry();
zis.close();
}
}
这是一个快速破解，您必须添加目录扫描器才能获取所有 jar 文件名，但它应该可以解决问题。
我运行了python脚本，但它没有完全充实wrt嵌套文件夹等。我在如何知道maven android项目中任何外部jar的groupid和artifactid中找到了一个很好的替代脚本
为了构建 toki lou tok 的想法，我在 Java 中实现了针对 Maven Central 的 sha1hash 检查。
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import org.junit.Test;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
public class PomBuilder {
@Test
public void buildPOM() {
String pathToFolder = "path to lib folder";
File currentDirectory = new File(pathToFolder);
// Get a list of all the jars in the current directory
File[] jars = currentDirectory.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.endsWith(".jar");
}
});
for (File jar : jars) {
try {
//extractPomStream(jar);
String hashedFile = getSHA1Hash(jar);
String urlString = "https://search.maven.org/solrsearch/select?q=1:" +
hashedFile+"&wt=json&rows=1";
String response = getUrlContent(urlString);
JSONObject json = new JSONObject(response);
JSONObject dependency = json.getJSONObject("response").getJSONArray("docs").getJSONObject(0);
String depEntry = formatDependencyEntry((String) dependency.get("g"), (String) dependency.get("a"), (String) dependency.get("v"));
System.out.println(depEntry);
} catch (IOException | NoSuchAlgorithmException | JSONException e) {
// TODO Auto-generated catch block
//e.printStackTrace();
System.out.println("Failed to create entry for " + jar.getName());
}
}
}
private String formatDependencyEntry(String groupId, String artifactId, String version) {
String dependency = "<dependency>\r\n"
+ " <groupId><<groupID>></groupId>\r\n"
+ " <artifactId><<artifactId>></artifactId>\r\n"
+ " <version><<version>></version>\r\n"
+ "</dependency>";
if(groupId == null)
groupId="";
if(artifactId == null)
artifactId = "";
if(version == null)
version = "";
dependency = dependency.replace("<<groupID>>", groupId);
dependency = dependency.replace("<<artifactId>>", artifactId);
dependency = dependency.replace("<<version>>", version);
return dependency;
}
public String getSHA1Hash(File file) throws NoSuchAlgorithmException, IOException {
MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");
try(FileInputStream fileInputStream = new FileInputStream(file)){
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = fileInputStream.read(buffer)) != -1) {
messageDigest.update(buffer, 0, bytesRead);
}
byte[] sha1Hash = messageDigest.digest();
return convertByteArrayToHex(sha1Hash);
}
}
private String convertByteArrayToHex(byte[] bytes) {
StringBuilder hexString = new StringBuilder();
for (byte b : bytes) {
hexString.append(String.format("%02x", b));
}
return hexString.toString();
}
public String getUrlContent(String urlString) {
URL url;
try {
url = new URL(urlString);
URLConnection conn = url.openConnection();
// open the stream and put it into BufferedReader
BufferedReader br = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String inputLine;
String returnString = "";
while ((inputLine = br.readLine()) != null) {
returnString += inputLine;
}
br.close();
return returnString;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return "fail";
}
}