Java无法执行jar文件没有主清单属性

Question

jar cvef Main.jar Main *

added manifest
adding: DrawPane.class(in = 344) (out= 257)(deflated 25%)
adding: DrawPane.java(in = 306) (out= 175)(deflated 42%)
adding: main(in = 9038) (out= 8275)(deflated 8%)
adding: Main.class(in = 868) (out= 544)(deflated 37%)
adding: Main.java(in = 507) (out= 260)(deflated 48%)
adding: Manifest.txt(in = 18) (out= 18)(deflated 0%)
adding: src/(in = 0) (out= 0)(stored 0%)
adding: src/icon.png(in = 1163) (out= 1168)(deflated 0%)
adding: src/Thumbs.db(in = 3584) (out= 1038)(deflated 71%)

创建jar文件,然后:

java -jar Main.jar

我收到一个错误:

no main manifest attribute, in Main.jar

我做错了什么？

Answer 1

根据本教程,您的清单文件应具有相对路径META-INF/MANIFEST.MF.看起来你没有在那里添加自己的清单.该jar命令添加了一个默认清单,这就是它显示"manifest added"的原因.

编辑:根据教程的下一页,将内容添加到清单文件的基本语法如下:

jar cfm jar-file manifest-addition input-file(s)

我建议阅读本教程的前几节,我相信你会得到你想要的结果!