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

     <dependency><groupId>org.jsoup</groupId><artifactId>jsoup</artifactId><version>1.8.3</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.6</version></dependency>

生成类似的xml内容：

<dependencys><dependency><groupId>org.antlr</groupId><artifactId>antlr4-runtime</artifactId><version>4.5.1-1</version></dependency><dependency><groupId>org.ow2.asm</groupId><artifactId>asm</artifactId><version>5.0.4</version></dependency><dependency><groupId>org.ow2.asm</groupId><artifactId>asm-commons</artifactId><version>5.0.4</version></dependency><dependency><groupId>com.github.ben-manes.caffeine</groupId><artifactId>caffeine</artifactId><version>1.0.1</version></dependency><dependency><groupId>commons-cli</groupId><artifactId>commons-cli</artifactId><version>1.2</version></dependency>
......