java - Netbeans 7.2.1，Java 反射，method.invoke(super, ..)

Question

为什么要调用

try {
    method.invoke(super, "abc", "def");
}
catch (Exception e) {
    // ignore for now
}

给我这样的错误:

'.' expected

在 Netbeans 7.2.1 中？清理&构建后:

Compiling 2 source files to C:\Documents and Settings\u\Moje dokumenty\NetBeansProjects\ServletPlus\build\web\WEB-INF\classes
C:\Documents and Settings\u\Moje dokumenty\NetBeansProjects\ServletPlus\src\java\pl\adrian\servlets\ServletPlus.java:45: error: '.' expected
                    method.invoke(super, "abc", "def");
C:\Documents and Settings\u\Moje dokumenty\NetBeansProjects\ServletPlus\src\java\pl\adrian\servlets\ServletPlus.java:45: error: ')' expected
                    method.invoke(super, "abc", "def");
C:\Documents and Settings\u\Moje dokumenty\NetBeansProjects\ServletPlus\src\java\pl\adrian\servlets\ServletPlus.java:45: error: ';' expected
                    method.invoke(super, "abc", "def");
C:\Documents and Settings\u\Moje dokumenty\NetBeansProjects\ServletPlus\src\java\pl\adrian\servlets\ServletPlus.java:45: error: not a statement
                    method.invoke(super, "abc", "def");
C:\Documents and Settings\u\Moje dokumenty\NetBeansProjects\ServletPlus\src\java\pl\adrian\servlets\ServletPlus.java:45: error: ';' expected
                    method.invoke(super, "abc", "def");
5 errors
C:\Documents and Settings\u\Moje dokumenty\NetBeansProjects\ServletPlus\nbproject\build-impl.xml:851: The following error occurred while executing this line:
C:\Documents and Settings\u\Moje dokumenty\NetBeansProjects\ServletPlus\nbproject\build-impl.xml:284: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 3 seconds)

Answer 1

super 是一个 reserved word in java .

尝试更改变量名称。

在此处查看如何使用 super 关键字。 http://docs.oracle.com/javase/tutorial/java/IandI/super.html

如果你想invoke a superclass method你必须使用 super.methodName()