影落离风

The shadow falls away from the wind

0%

将项目中的jar文件生成pom文件

1. 首先在pom中导入以下包

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<dependencies>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastJson</artifactId>
<version>1.2.17</version>
</dependency>

<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6</version>
</dependency>
<dependency>
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>1.9.2</version>
</dependency>
</dependencies>

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2. 运行如下代码

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package com.test;

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("E:\\my_project\\test\\src\\main\\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();
if(mainmanifest==null) {
continue;
}
String bundleName = mainmanifest.getMainAttributes().getValue("Bundle-Name");
String bundleVersion = mainmanifest.getMainAttributes().getValue("Bundle-Version");
Element ele = null;
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;
}
}

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3. 运行之后会在控制台输出pom内容

参考链接

ps.其他网站方法都少这个判断,会抛出空指针异常

img)点击并拖拽以移动