jar包中替换指定的class文件方法详解

jar uvf ntocc-plat-api.jar com/xxx/ntocc/plat/api/service/order/InvoiceApplyService.class`
adding: com/arpa/ntocc/plat/api/service/order/InvoiceApplyService.class(in = 6827) (out= 2996)(deflated 56%)

public class TestJar {
  public static void main(String[] args){
      System.out.println("==============NEW INSERT================");
      System.out.println("========niewj Main Test ===========");
      System.out.println(MyUtil.call("hello"));
      System.out.println("========niewj Main Test ===========");
  }
}

public class MyUtil {
  public static String call(String param){
      return "param=" + param;
  }
}

jar cfe Test.jar TestJar *

jar uvf Test.jar TestJar.class

jar uvf Test.jar TestJar.class MyUtil.class

jar xvf .\Test.jar
  已创建: META-INF/
  已解压: META-INF/MANIFEST.MF
  已解压: MyUtil.class
  已解压: MyUtil.java
  已解压: TestJar.class
  已解压: TestJar.java

jar tvf .\Test.jar
     0 Mon Oct 16 14:17:26 CST 2023 META-INF/
    90 Mon Oct 16 14:17:26 CST 2023 META-INF/MANIFEST.MF
   714 Mon Oct 16 14:03:36 CST 2023 MyUtil.class
   120 Mon Oct 16 14:03:28 CST 2023 MyUtil.java
   597 Mon Oct 16 14:03:50 CST 2023 TestJar.class
   247 Mon Oct 16 14:11:40 CST 2023 TestJar.java