声明:仅限于将maven Repository下载的jar(使用maven打包的jar)安装到本地的maven仓库中,不保证全部成功,最初的时候添加依赖发现下载始终不成功,只能手动下载,但是手动下载完毕后,只能通过mvn install:install-file -Dfile=..这种方式安装jar包到仓库,实在是太过繁琐,仔细观察jar包后发现jar的坐标信息很容易从jar名称已经jar内部的pom.properties文件获得,代码如下
1 package installJarToMVN;
2
3 import java.io.BufferedReader;
4 import java.io.File;
5 import java.io.IOException;
6 import java.io.InputStream;
7 import java.io.InputStreamReader;
8 import java.util.Enumeration;
9 import java.util.jar.JarEntry;
10 import java.util.jar.JarFile;
11 import java.util.zip.ZipEntry;
12
13 /**
14 * 读取jar包内的pom.properties 获得groupid
15 * version,artifactId可以从jar包名称获取,也可以从pom.properties获取
16 *
17 * @author Tele
18 *
19 */
20
21 public class InstallJar {
22 // 默认jar包路径,填写到目录
23 private static String jarPath = "d:/jartoMVN/";
24 private static BufferedReader reader;
25 public static void main(String[] args) {
26
27 if (args.length > 0) {
28 if (args[0] != null && args[0].trim().length() > 0) {
29 jarPath = args[0];
30 }
31 }
32
33 File dir = new File(jarPath);
34 if (!dir.exists()) {
35 throw new RuntimeException("jar包目录不存在!");
36 } else {
37 if (!dir.isDirectory()) {
38 throw new RuntimeException("输入的参数必须为jar包所在目录!");
39 } else {
40 File[] listFiles = dir.listFiles();
41 if (listFiles.length == 0) {
42 throw new RuntimeException("当前目录下没有文件");
43 }
44
45 String[] params = new String[4];
46 // 遍历
47 for (int i = 0; i < listFiles.length; i++) {
48 File jarFile = listFiles[i];
49
50 // 过滤非jar文件
51 if (!jarFile.getName().contains(".jar")) {
52 continue;
53 }
54
55 // 去除后缀,jar的名字可能含有多个 ".",hadoop-yarn-server-applicationhistoryservice-3.1.1.jar
56 String jarName = jarFile.getName();
57 // 保留原始的jar名称
58 String orginalName = jarName;
59
60 // hadoop-yarn-server-applicationhistoryservice-3.1.1
61 jarName = jarName.substring(0, jarName.lastIndexOf("."));
62
63 // 获得artifactId
64 String artifactId = jarName.substring(0, jarName.lastIndexOf("-"));
65
66 // 获得版本号
67 String version = jarName.substring(jarName.lastIndexOf("-") + 1);
68
69 // 获得groupId
70
71 // 拼接的完整路径
72 String groupId = readPomproperties(jarPath + orginalName);
73 if (groupId == null) {
74 throw new RuntimeException("获取groupId失败");
75 }
76 groupId = groupId.split("=")[1];
77
78 // 封装参数
79 params[0] = jarPath + orginalName;
80 params[1] = groupId;
81 params[2] = artifactId;
82 params[3] = version;
83
84 install(params);
85
86 }
87
88 }
89
90 }
91
92 }
93
94
95 /**
96 *
97 * @param path groupId=org.apache.hadoop
98 * @return 获得groupId,在pom.properties文件的第四行
99 */
100 public static String readPomproperties(String path) {
101 JarFile jarFile = null;
102 String groupId = null;
103 // groupId在第四行
104 int number = 4;
105 try {
106 jarFile = new JarFile(path);
107 Enumeration<JarEntry> entries = jarFile.entries();
108 while (entries.hasMoreElements()) {
109 JarEntry jarEntry = entries.nextElement();
110
111 String name = jarEntry.getName();
112
113 if (name.contains("pom.properties")) {
114 reader = new BufferedReader(new InputStreamReader(jarFile.getInputStream(jarEntry), "utf-8"));
115 String line = "";
116
117 // 计行数
118 int count = 0;
119
120 while ((line = reader.readLine()) != null) {
121
122 count++;
123 if (count == 4) {
124 groupId = line;
125 }
126 }
127
128 }
129 }
130
131 } catch (IOException e) {
132 // TODO Auto-generated catch block
133 e.printStackTrace();
134 } finally {
135 if (reader != null) {
136 try {
137 reader.close();
138 } catch (IOException e) {
139 // TODO Auto-generated catch block
140 e.printStackTrace();
141 }
142 }
143 if (jarFile != null) {
144 try {
145 jarFile.close();
146 } catch (IOException e) {
147 // TODO Auto-generated catch block
148 e.printStackTrace();
149 }
150 }
151 }
152 return groupId;
153 }
154
155 // 执行安装命令
156 public static void install(String[] params) {
157 // 拼接命令
158 String order = "mvn install:install-file" + " -Dfile=" + params[0] + " -DgroupId=" + params[1]
159 + " -DartifactId=" + params[2] + " -Dversion=" + params[3] + " -Dpackaging=jar";
160
161 Runtime rt = Runtime.getRuntime();
162 // 执行安装
163 System.out.println(order);
164 Process p;
165 try {
166 p = rt.exec("cmd.exe /c " + " " + order);
167
168 reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
169 String line;
170 // 输出进程
171 while ((line = reader.readLine()) != null) {
172 System.out.println(line);
173 }
174
175 if (reader != null) {
176 reader.close();
177 }
178
179 // waitFor()是阻塞方法,等待外部命令执行结束
180 p.waitFor();
181
182 p.destroy();
183 p = null;
184
185 } catch (IOException e) {
186 // TODO Auto-generated catch block
187 e.printStackTrace();
188 } catch (InterruptedException e) {
189 // TODO Auto-generated catch block
190 e.printStackTrace();
191 }
192
193 }
194
195 }
测试结果:
1.eclipse中运行
2.打包成jar
3.可以指定目录.默认的目录为d:/jartoMVN/ ,直接拷贝路径时记得加上 "/"
jar包链接:https://files.cnblogs.com/files/tele-share/installjar2mvn.zip
原文地址：https://www.cnblogs.com/tele-share/p/9945753.html
时间： 2024-07-29 10:17:19