.throw new Exception("a");
"a"他就是一个提示信息,你可以在里面输入提示,如果出现异常,他就会打印出来
@Test
public void testException() {
try {
throw new Exception("a");
} catch (Exception e) {
e.printStackTrace();
}
}
输出:java.lang.Exception: a
at com.atguigu.vodtest.TestVod.testException(TestVod.java:43)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
..................
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
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