根据已有项目jar文件生成maven的pom.xml

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package demo;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.jar.JarInputStream;
import java.util.jar.Manifest;

import org.dom4j.Element;
import org.dom4j.dom.DOMElement;
import org.jsoup.Jsoup;

import com.alibaba.fastjson.JSONObject;

public class MakePomFromJars {

	public static void main(String[] args) throws FileNotFoundException, IOException {
		Element dependencys = new DOMElement("dependencys");
		File dir = new File("/Users/xxx/Documents/work/workspaces/maven_demo/src/resources/webapp/WEB-INF/lib");
		for (File jar : dir.listFiles()) {
			JarInputStream jis = new JarInputStream(new FileInputStream(jar));
			Manifest mainmanifest = jis.getManifest();
			jis.close();
			if (mainmanifest == null) {
				System.err.println(jar.getName());
				continue;
			}
			String bundleName = mainmanifest.getMainAttributes().getValue("Bundle-Name");
			String bundleVersion = mainmanifest.getMainAttributes().getValue("Bundle-Version");
			Element ele = null;
			System.out.println(jar.getName());

			StringBuffer sb = new StringBuffer(jar.getName());
			if (bundleName != null) {
				bundleName = bundleName.toLowerCase().replace(" ", "-");
				sb.append(bundleName+"\t").append(bundleVersion);
				ele = getDependices(bundleName, bundleVersion);
				System.out.println(sb.toString());
				System.out.println(ele.asXML());
			}
			if (ele == null || ele.elements().size() == 0) {
				bundleName = "";
				bundleVersion = "";
				String[] ns = jar.getName().replace(".jar", "").split("-");
				for (String s : ns) {
					if (Character.isDigit(s.charAt(0))) {
						bundleVersion += s + "-";
					} else {
						bundleName += s + "-";
					}
				}
				if (bundleVersion.endsWith("-")) {
					bundleVersion = bundleVersion.substring(0, bundleVersion.length() - 1);
				}
				if (bundleName.endsWith("-")) {
					bundleName = bundleName.substring(0, bundleName.length() - 1);
				}
				ele = getDependices(bundleName, bundleVersion);
				sb.setLength(0);
				sb.append(bundleName+"\t").append(bundleVersion);
				System.out.println(sb.toString());
				System.out.println(ele.asXML());
			}
			ele = getDependices(bundleName, bundleVersion);
			if (ele.elements().size() == 0) {
				ele.add(new DOMElement("groupId").addText("not find"));
				ele.add(new DOMElement("artifactId").addText(bundleName));
				ele.add(new DOMElement("version").addText(bundleVersion));
			}
			dependencys.add(ele);
			System.out.println();
		}
		System.out.println(dependencys.asXML());
	}

	public static Element getDependices(String key, String ver) {
		Element dependency = new DOMElement("dependency");
		// 设置代理
		// System.setProperty("http.proxyHost", "127.0.0.1");
		// System.setProperty("http.proxyPort", "8090");
		try {
			String url = "http://search.maven.org/solrsearch/select?q=a%3A%22" + key + "%22%20AND%20v%3A%22" + ver + "%22&rows=3&wt=json";
			org.jsoup.nodes.Document doc = Jsoup.connect(url).ignoreContentType(true).timeout(30000).get();
			String elem = doc.body().text();
			JSONObject response = JSONObject.parseObject(elem).getJSONObject("response");
			if (response.containsKey("docs") && response.getJSONArray("docs").size() > 0) {
				JSONObject docJson = response.getJSONArray("docs").getJSONObject(0);
				Element groupId = new DOMElement("groupId");
				Element artifactId = new DOMElement("artifactId");
				Element version = new DOMElement("version");
				groupId.addText(docJson.getString("g"));
				artifactId.addText(docJson.getString("a"));
				version.addText(docJson.getString("v"));
				dependency.add(groupId);
				dependency.add(artifactId);
				dependency.add(version);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return dependency;
	}

}

依赖2个jar

		
			org.jsoup
			jsoup
			1.8.3
		
		
			com.alibaba
			fastjson
			1.2.6
		

生成类似的xml内容：

	
		org.antlr
		antlr4-runtime
		4.5.1-1
	
	
		org.ow2.asm
		asm
		5.0.4
	
	
		org.ow2.asm
		asm-commons
		5.0.4
	
	
		com.github.ben-manes.caffeine
		caffeine
		1.0.1
	
	
		commons-cli
		commons-cli
		1.2
	
......

 

转载于:https://my.oschina.net/zhhzhfya/blog/735050