Javassist是不调用方法在超类中定义

问题描述 投票:0回答:1

大家好,我一直在Javassist是图书馆尝试我的手,也似乎遇到一个障碍,我不能交叉。问题是,我想创建一个动态配置类扩展球衣的ResourceConfig类,并在构造函数中我要注册为注射用包和工厂对象。但每次我得到错误的时间(贴在下面)

public static void main(String[] args) throws Exception {
        // TODO Auto-generated method stub
        ClassPool pool = ClassPool.getDefault();

        CtClass superCc = null;
        try {
            superCc = pool.get(ResourceConfig.class.getCanonicalName());

        } catch (NotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        try {
            CtClass cc = pool.makeClass("org.demonking.AppConfig");
            cc.setSuperclass(superCc);
            System.out.println(cc.getSuperclass().getName());
            CtConstructor constructor = new CtConstructor(new CtClass[0], cc);

            constructor.setBody("{\n"+"packages(\"org.demonking\");"+"\n"+"register(InjectorDemo.class);"+"\n"+"}");


            cc.addConstructor(constructor);

        } catch (CannotCompileException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
//rest of my jersey code
}

原来的AppConfig我想动态创建(工作正常)

public class AppConfig extends ResourceConfig{

    public AppConfig()
    {
        packages("org.demonking");
        register(new AbstractBinder(){
            @Override
            protected void configure() {
                bindFactory(ContextHelperFactory.class)
                        .to(ContextHelper.class)
                        .in(RequestScoped.class);
            } 
        });
    }

请注意,同时研究我跨了Javassist来有关于匿名内部类,因此代码已被转移到InjectorDemo类的一些限制。

public class InjectorDemo extends AbstractBinder {

    @Override
    protected void configure() {
        // TODO Auto-generated method stub
             bindFactory(ContextHelperFactory.class)
                     .to(ContextHelper.class)
                     .in(RequestScoped.class);
    }
}

错误

javassist.CannotCompileException: [source error] packages(java.lang.String) not found in org.demonking.AppConfig
    at javassist.CtBehavior.setBody(CtBehavior.java:446)
    at javassist.CtBehavior.setBody(CtBehavior.java:412)
    at javassist.CtConstructor.setBody(CtConstructor.java:217)
    at org.logicunit.JavassistDemoMain.main(JavassistDemoMain.java:42)
Caused by: compile error: packages(java.lang.String) not found in org.demonking.AppConfig
    at javassist.compiler.TypeChecker.atMethodCallCore(TypeChecker.java:749)
    at javassist.compiler.TypeChecker.atCallExpr(TypeChecker.java:695)
    at javassist.compiler.JvstTypeChecker.atCallExpr(JvstTypeChecker.java:157)
    at javassist.compiler.ast.CallExpr.accept(CallExpr.java:46)
    at javassist.compiler.CodeGen.doTypeCheck(CodeGen.java:242)
    at javassist.compiler.CodeGen.atStmnt(CodeGen.java:330)
    at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50)
    at javassist.compiler.CodeGen.atStmnt(CodeGen.java:351)
    at javassist.compiler.ast.Stmnt.accept(Stmnt.java:50)
    at javassist.compiler.CodeGen.atMethodBody(CodeGen.java:292)
    at javassist.compiler.Javac.compileBody(Javac.java:223)
    at javassist.CtBehavior.setBody(CtBehavior.java:438)
java jersey-2.0 javassist
1个回答
0
投票

我得到了它的工作。对于有同样的问题的解决方案是,在我的情况下,包装方法属于例外的可变参数的参数,而我经过串,适当的参数正确调用该方法的人,一旦我发现了如何调用可变参数的方法通过Javassist进行论证我得到的代码工作。下面是其中的伎俩我线程https://issues.jboss.org/browse/JASSIST-192?_sscc=t

© www.soinside.com 2019 - 2024. All rights reserved.