原始项目jar包转maven的pom文件

红太狼 2021-11-05 15:34 322阅读 0赞

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("D:/pathform/WebRoot/WEB-INF/lib"); //需生成pom.xml 文件的 lib路径
           for (File jar : dir.listFiles()) {
                JarInputStream jis = new JarInputStream(new FileInputStream(jar));
                Manifest mainmanifest = jis.getManifest();
                jis.close();
               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;
     }
    }

最后其所生成的依赖都打印在控制台。只需要将其复制到maven项目下的POM.xml文件中;  
*运行过程中可能会出现报错，原因及解决办法：  
1.maven库里面找不到相应的jar包；  
2.可在lib下将已生成的jar 删除再试。*  
[https://my.oschina.net/zhhzhfya/blog/735050][https_my.oschina.net_zhhzhfya_blog_735050] （源文章链接）

[https_my.oschina.net_zhhzhfya_blog_735050]: https://my.oschina.net/zhhzhfya/blog/735050