根据jar生成pom

蔚落 2024-04-07 15:59 56阅读 0赞

看了网上不少根据lib下的jar自动生成pom.xml中的依赖的文章,发现其实并不理想, 基本上就是获取jar中的信息替你去查询下[网上][Link 1],解析返回值,把可能的groupId,version等信息拼接一下。还是需要人工识别修改下，不过总比从头开始方便一点。下面具体解析一个例子：

**人工根据jar相关信息去maven仓库查询，分析网络交互方式**  
https://search.maven.org/solrsearch/select?q=g:junit%20AND%20v:4.11&start=0&rows=3  
![在这里插入图片描述][1fac7f58967e4a6cbd3a051646d81b4d.png]  
![在这里插入图片描述][08a3466f4381477eaf937a9787b96fc6.png]  
**代码模拟人工查询并拼接依赖xml**

import com.alibaba.fastjson.JSONObject;
    import org.dom4j.Element;
    import org.dom4j.dom.DOMElement;
    import org.jsoup.Jsoup;
    
    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;
    
    public class MakePomFromJars {
        
    
    
        public static void main(String[] args) throws FileNotFoundException, IOException {
        
            Element dependencys = new DOMElement("dependencys");
            File dir = new File("D:\\IdeaProjects\\SQLParse-master\\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");
            // System.setProperty("http.proxyHost", "127.0.0.1");
            // System.setProperty("http.proxyPort", "8090");
            try {
        
            // https://search.maven.org/solrsearch/select?q=g:junit%20AND%20v:4.11&start=0&rows=3
            //String url = "http://search.maven.org/solrsearch/select?q=a%3A%22" + key + "%22%20AND%20v%3A%22" + ver + "%22&rows=3&wt=json";
                //https://search.maven.org/solrsearch/select?q=apache-log4j-extras&v=1.2.17
                String url = "http://search.maven.org/solrsearch/select?q=" + key + "&v=" + ver + "&rows=3&wt=json";
                org.jsoup.nodes.Document doc = Jsoup.connect(url).ignoreContentType(true).timeout(30000).get();
                String elem = doc.body().text();
    //            System.out.println(elem);
                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");
                    Element latestVersion = new DOMElement("latestVersion");
                    groupId.addText(docJson.getString("g"));
                    artifactId.addText(docJson.getString("a"));
                    version.addText(ver);
                    latestVersion.addText(docJson.getString("latestVersion"));
                    dependency.add(groupId);
                    dependency.add(artifactId);
                    dependency.add(version);
                    //dependency.add(latestVersion);
                }
                //查找不到jar
                else {
        
                    Element groupId = new DOMElement("groupId");
                    Element artifactId = new DOMElement("artifactId");
                    Element version = new DOMElement("version");
                    groupId.addText("com.aj.external");
                    artifactId.addText(key);
                    version.addText("1.0.0" );
                    dependency.add(groupId);
                    dependency.add(artifactId);
                    dependency.add(version);
                }
            } catch (Exception e) {
        
                e.printStackTrace();
            }
            return dependency;
        }
    
    }

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>org.example</groupId>
        <artifactId>createPom</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        <properties>
            <maven.compiler.source>11</maven.compiler.source>
            <maven.compiler.target>11</maven.compiler.target>
        </properties>
        <dependencies>
            <dependency>
                <groupId>dom4j</groupId>
                <artifactId>dom4j</artifactId>
                <version>1.1</version>
            </dependency>
            <dependency>
                <groupId>org.jsoup</groupId>
                <artifactId>jsoup</artifactId>
                <version>1.10.2</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.80</version>
            </dependency>
        </dependencies>
    </project>

[Link 1]: https://search.maven.org/
[1fac7f58967e4a6cbd3a051646d81b4d.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/07/891e0458b3654aa982ca9ff418907e48.png
[08a3466f4381477eaf937a9787b96fc6.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/07/2f005d1f78044054a3fc19b857b5427a.png