在不运行其静态初始化程序的情况下检查 Java 类路径中是否存在类? [英] Check if class exists in Java classpath without running its static initializer?

问题描述

如果我使用

   try {
      Class.forName("my.package.Foo");
      // it exists on the classpath
   } catch(ClassNotFoundException e) {
      // it does not exist on the classpath
   }

Foo"的静态初始化块被启动.有没有办法在不启动静态初始化程序的情况下确定类my.package.Foo"是否在类路径上?

the static initializer block of "Foo" is kicked off. Is there a way to determine whether a class "my.package.Foo" is on the classpath without kicking off its static initializer?

推荐答案

尝试Class的forName(String name, boolean initialize, ClassLoader loader)方法并设置参数 initialize 为 false.

Try the forName(String name, boolean initialize, ClassLoader loader) method of Class and set the param initialize to false.

JavaDoc 链接

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