jni 方法签名

方法签名的格式为(形参参数类型列表)返回值

形参参数列表中,引用类型以L开头,后面紧跟类的全路径名(需将.全部替换成/),以分号结尾。

public native static byte test3_();
方法签名:()B
public native static void test(boolean b, byte be, short s, int i,
                               long ll, float f, double d);
方法签名:(ZBSIJFD)V
public native static String test2x(int errorCode,String errorMsg);
方法签名:(ILjava/lang/String;)Ljava/lang/String;

demo:

package com.xxx.dbl;

public class Data {
    public native static void test(boolean b, byte be, short s, int i,
                                   long ll, float f, double d);

    public native static String test2x(int errorCode,String errorMsg);

    ///
    public native static byte test3_();

    public native static char test4_();

    public native static short test5_();

 

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