[英]Javassist : Bytecode.get() is not working
import javassist.bytecode.Bytecode;
import javassist.bytecode.ConstPool;
public class Coverage {
public static void main(String[] args) {
ConstPool cp = new ConstPool("Hello");
byte[] b = new byte[100];
Bytecode bc = new Bytecode(cp);
b = bc.get();
System.out.println("Bytecode start");
for(int i = 0 ; i < b.length ; i++)
{
System.out.println(b);
}
System.out.println("Bytecode end");
}
}
bc.get() is not returning anything. bc.get()不返回任何内容。 My aim is to get the byte code of a class.
我的目的是获取类的字节码。
Well your System.out.println(b);
好你的
System.out.println(b);
is printing the whole array every time, you need System.out.println(b[i]);
每次都打印整个数组,您需要
System.out.println(b[i]);
but I don't think that will work anyway. 但我认为无论如何都行不通。 Try...
尝试...
public static void main(String[] args) {
ClassPool pool = ClassPool.getDefault();
try {
CtClass cc = pool.get("java.lang.String");
byte[] bytes = cc.toBytecode();
System.out.println("Bytecode start");
for (Byte b : bytes) {
System.out.println(b);
}
System.out.println("Bytecode end");
} catch (NotFoundException e) {
e.printStackTrace();
} catch (CannotCompileException e) {
e.printStackTrace();
}
}
请参阅此BCEL教程以编写代码覆盖率工具。
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