[英]Bazel build java demo: build ok but fail to run
我是 bazel 的新手並且有這個演示項目:
(1)mkdir 演示項目
(2)cd 演示項目
(3)mkdir -p src/main/java/com/demo
(4)vi src/main/java/com/demo/DemoRunner.java
package com.demo;
public class DemoRunner {
public static void main(String args[]) {
Hello.hello();
}
}
(5)vi src/main/java/com/demo/Hello.java
package com.demo;
public class Hello {
public static void hello() {
System.out.println("hello,world");
}
}
(6)vi ~/demo-project/BUILD
java_binary(
name = "hello",
srcs = glob(["**/*.java"]),
main_class = "com.demo.DemoRunner",
)
(7) bazel build //:hello
Starting local Bazel server and connecting to it...
...........
Analyzing: target //:hello (2 packages loaded)
INFO: Analysed target //:hello (15 packages loaded).
INFO: Found 1 target...
Target //:hello up-to-date:
bazel-bin/hello.jar
bazel-bin/hello
INFO: Elapsed time: 60.505s, Critical Path: 1.24s
INFO: 1 process: 1 worker.
INFO: Build completed successfully, 6 total actions
一切似乎都很好,但是當我試圖
java bazel-bin/hello # Cannot find or load main class bazel-bin.hello
java -jar bazel-bin/hello.jar # Cannot find main list property in bazel-bin/hello.jar
如上所述,這兩個命令都不成功。 那么在 bazel 編譯之后,我該如何運行 java 可執行文件呢?
Bazel 命令run
可用於運行指定的目標(另請參閱 Bhavik 的評論):
bazel run //:hello
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