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import com.google.gson.JsonObject; import com.google.gson.JsonParser; import org.apache.commons.io.IOUtils; import java.io.*; import java.net.URL; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.HashMap; import java.util.Map; /** * 读取jar文件的sha1码,请求maven官方的solrsearch接口查询该jar文件所对应的maven坐标信息 * Created by Nihaorz on 2017/4/20. */ public class MakeMavenInfo { public static void main(String[] args) throws IOException, NoSuchAlgorithmException { long start = System.currentTimeMillis(); File dir = new File("C:\Users\Administrator\Desktop\jars"); for (File jar : dir.listFiles()) { String sha1 = getSha1ByFile(jar); Map<String, String> map = getMavenInfoBySha1(jar, sha1); System.out.println(map); } long end = System.currentTimeMillis(); System.out.println("耗时:" + (end-start)/1000 + "秒"); } /** * 根据jar包输入流获取该文件的sha1码 * @param file * @return * @throws IOException * @throws NoSuchAlgorithmException */ public static String getSha1ByFile(File file) throws IOException, NoSuchAlgorithmException { MessageDigest sha1 = MessageDigest.getInstance("SHA1"); FileInputStream fis = new FileInputStream(file); byte[] data = new byte[1024]; int read; while ((read = fis.read(data)) != -1) { sha1.update(data, 0, read); } byte[] hashBytes = sha1.digest(); StringBuffer sb = new StringBuffer(); for (int i = 0; i < hashBytes.length; i++) { sb.append(Integer.toString((hashBytes[i] & 0xff) + 0x100, 16).substring(1)); } return sb.toString(); } /** * 根据sha1码请求接口拿到该jar包对应的maven坐标信息 * @param jar * @param sha1 * @return */ public static Map<String, String> getMavenInfoBySha1(File jar, String sha1){ Map<String, String> map = new HashMap<String, String>(); String url = "http://search.maven.org/solrsearch/select?q=1:""; StringBuilder sb = new StringBuilder(); sb.append(url).append(sha1).append(""&rows=20&wt=json"); map.put("jarName", jar.getName()); try { String jsonStr = IOUtils.toString(new URL(sb.toString())); JsonObject json = new JsonParser().parse(jsonStr).getAsJsonObject(); JsonObject obj = json.getAsJsonObject("response").getAsJsonArray("docs").get(0).getAsJsonObject(); map.put("groupId", obj.get("g").getAsString()); map.put("artifactId", obj.get("a").getAsString()); map.put("version", obj.get("v").getAsString()); map.put("packaging", obj.get("p").getAsString()); map.put("result", "true"); } catch (Exception e) { e.printStackTrace(); map.put("result", "false"); System.out.println(sb); } return map; } }