Java 字节伙伴（字节码操纵）拦截器不工作：无

我必须将注释XmlElementWrapper和XmlElement添加到列表类型的字段中，但这些注释需要名称。我想将属性名设置为字段名。 我有：

newbytebuddy（）
.重新定义（类名）
.method（ElementMatchers.isGetter（）和（ElementMatchers.nameStartsWith（“get”））
.intercept（MethodDelegation.to（SetterListInterceptor.class））
.make（）；
//保存在.class文件中（覆盖）
List setFields=SetterListInterceptor.get_fieldsList（）；
用于（字符串字段：设置字段）{
新的ByteBuddy（ClassFileVersion.JAVA_V7）
.重新定义（类名）
.field（ElementMatchers.named（field））
.AnnotationField（AnnotationDescription.Builder.ofType（XmlElementWrapper.class）。定义（“名称”、“包装器”+字段）。build（），
AnnotationDescription.Builder.ofType（xmlement.class）.define（“name”，“element”+field.build（））
).make（）
.saveIn（_outputDirectory.getParent（）.toFile（））；
}

这是我的拦截器：

public class SetterListInterceptor {

    public static final String GET_SIGNATURE = "get";
    //questa è la lista delle proprietà di tipo java.util.List' trovate nella classe in oggetto (una istanza di questa classe per classe)
    private static List<String> _fieldsList = new LinkedList<>();


    public static void getter(@Origin Method m) {
        String mname = m.getName();
        if (m.getReturnType().getCanonicalName().equals("java.util.List")) {
            String fieldname = mname.substring(mname.indexOf(GET_SIGNATURE) + 3);
            _fieldsList.add(fieldname);
        }
    }


    public static List<String> get_fieldsList() {
        List<String> temp = new LinkedList<>();
        temp.addAll(_fieldsList);
        _fieldsList = new LinkedList<>();
        return temp;
    }
}

公共类SetterListInterceptor{
公共静态最终字符串GET_SIGNATURE=“GET”；
//在oggetto的trovate nella classe中，java.util.List的属性列表（每个类的属性列表）
私有静态列表_fieldsList=新链接列表（）；
公共静态void getter（@Origin方法m）{
字符串mname=m.getName（）；
if（m.getReturnType（）.getCanonicalName（）.equals（“java.util.List”））{
String fieldname=mname.substring（mname.indexOf（GET_SIGNATURE）+3）；
_fieldsList.add（字段名）；
}
}
公共静态列表get_fieldsList（）{
List temp=new LinkedList（）；
临时添加所有（现场列表）；
_fieldsList=新的LinkedList（）；
返回温度；
}
}

这是目标类的一部分：

package drift.drift.thrift.api.sigs534;

@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked", "unused"})
@javax.annotation.Generated(value = "Autogenerated by Thrift Compiler (0.11.0)", date = "2018-06-18")
public class tTOPR implements org.apache.thrift.TBase<tTOPR, tTOPR._Fields>, java.io.Serializable, Cloneable, Comparable<tTOPR> {
  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("tTOPR");

  private static final org.apache.thrift.protocol.TField CDIPAPP_FIELD_DESC = new org.apache.thrift.protocol.TField("CDIPAPP", org.apache.thrift.protocol.TType.I64, (short)1);
  private static final org.apache.thrift.protocol.TField COPR_FIELD_DESC = new org.apache.thrift.protocol.TField("COPR", org.apache.thrift.protocol.TType.STRING, (short)2);
  private static final org.apache.thrift.protocol.TField CTERATT_FIELD_DESC = new org.apache.thrift.protocol.TField("CTERATT", org.apache.thrift.protocol.TType.STRING, (short)3);
  private static final org.apache.thrift.protocol.TField CUBS_FIELD_DESC = new org.apache.thrift.protocol.TField("CUBS", org.apache.thrift.protocol.TType.STRING, (short)4);
  private static final org.apache.thrift.protocol.TField DSESATT_FIELD_DESC = new org.apache.thrift.protocol.TField("DSESATT", org.apache.thrift.protocol.TType.STRING, (short)5);
  private static final org.apache.thrift.protocol.TField SAZILST_FIELD_DESC = new org.apache.thrift.protocol.TField("SAZILST", org.apache.thrift.protocol.TType.STRING, (short)6);
  private static final org.apache.thrift.protocol.TField XOPR_FIELD_DESC = new org.apache.thrift.protocol.TField("XOPR", org.apache.thrift.protocol.TType.STRING, (short)7);
  private static final org.apache.thrift.protocol.TField XSTT_FIELD_DESC = new org.apache.thrift.protocol.TField("XSTT", org.apache.thrift.protocol.TType.STRING, (short)8);

  private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new tTOPRStandardSchemeFactory();
  private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new tTOPRTupleSchemeFactory();

  public long CDIPAPP; // optional
  public java.lang.String COPR; // optional
  public java.lang.String CTERATT; // optional
  public java.lang.String CUBS; // optional
  public java.lang.String DSESATT; // optional
  public java.lang.String SAZILST; // optional
  public java.lang.String XOPR; // optional
  public java.lang.String XSTT; // optional

  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
...
}
....
..
  private static class tTOPRStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
    public tTOPRStandardScheme getScheme() {
      return new tTOPRStandardScheme();
    }
  }
..
..
}

package drift.drift.thrift.api.sigs534；
@SuppressWarnings（{“强制转换”、“原始类型”、“串行”、“未选中”、“未使用”}）
@javax.annotation.Generated（value=“由Thrift编译器自动生成（0.11.0）”，date=“2018-06-18”）
公共类tTOPR实现org.apache.thrift.TBase、java.io.Serializable、Cloneable、Comparable{
私有静态final org.apache.thrift.protocol.TStruct STRUCT_DESC=new org.apache.thrift.protocol.TStruct（“tTOPR”）；
私有静态最终org.apache.thrift.protocol.TField CDIPAPP_FIELD_DESC=new org.apache.thrift.protocol.TField（“CDIPAPP”，org.apache.thrift.protocol.TType.I64，（短）1）；
私有静态final org.apache.thrift.protocol.TField COPR_FIELD_DESC=new org.apache.thrift.protocol.TField（“COPR”，org.apache.thrift.protocol.TType.STRING，（短）2）；
私有静态final org.apache.thrift.protocol.TField cteatt_FIELD_DESC=new org.apache.thrift.protocol.TField（“cteatt”，org.apache.thrift.protocol.TType.STRING，（短）3）；
private static final org.apache.thrift.protocol.TField CUBS_FIELD_DESC=new org.apache.thrift.protocol.TField（“CUBS”，org.apache.thrift.protocol.TType.STRING，（短）4）；
私有静态final org.apache.thrift.protocol.TField DSESATT_FIELD_DESC=new org.apache.thrift.protocol.TField（“DSESATT”，org.apache.thrift.protocol.TType.STRING，（短）5）；
私有静态final org.apache.thrift.protocol.TField SAZILST_FIELD_DESC=new org.apache.thrift.protocol.TField（“SAZILST”，org.apache.thrift.protocol.TType.STRING，（短）6）；
private static final org.apache.thrift.protocol.TField XOPR_FIELD_DESC=new org.apache.thrift.protocol.TField（“XOPR”，org.apache.thrift.protocol.TType.STRING，（短）7）；
私有静态final org.apache.thrift.protocol.TField XSTT_FIELD_DESC=new org.apache.thrift.protocol.TField（“XSTT”，org.apache.thrift.protocol.TType.STRING，（短）8）；
private static final org.apache.thrift.scheme.SchemeFactory STANDARD_scheme_FACTORY=new tTOPRStandardSchemeFactory（）；
private static final org.apache.thrift.scheme.SchemeFactory TUPLE_scheme_FACTORY=new tTOPRTupleSchemeFactory（）；
公共长CDIPAPP；//可选
public java.lang.String COPR；//可选
public java.lang.String字符att；//可选
public java.lang.String CUBS；//可选
public java.lang.String DSESATT；//可选
public java.lang.String SAZILST；//可选
public java.lang.String XOPR；//可选
public java.lang.String XSTT；//可选
/**此结构包含的字段集，以及查找和操作这些字段的方便方法*/
公共枚举字段实现org.apache.thrift.TFieldIdEnum{
...
}
....
..
私有静态类tTOPRStandardSchemeFactory实现org.apache.thrift.scheme.SchemeFactory{
公共TTOPRS标准方案getScheme（）{
返回新的tTOPRStandardScheme（）；
}
}
..
..
}

但我有一个例外：

没有[public static void factory.framework.settersistinerceptor.getter（java.lang.reflect.Method）、public static java.util.List factory.framework.settersistinerceptor.get_fieldsList（）]允许从public drift.drift.thrift.api.sigs534.tTOPR$tTOPRStandardScheme drift.drift.thrift.api.sigs534.tTOPR$tTOPRStandardSchemeFactory.getScheme（）->[Help 1]

怎么了？ 任何解决方案都值得赞赏

抱歉，类名“SetterInterceptor”错误，我必须重命名为GetterInterceptor（不要混淆） 多谢各位

---

Roby

您的getter拦截器返回

void

，而被截获的方法应该返回一个值。因此，Byte Buddy不会映射这些方法

package drift.drift.thrift.api.sigs534;

@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked", "unused"})
@javax.annotation.Generated(value = "Autogenerated by Thrift Compiler (0.11.0)", date = "2018-06-18")
public class tTOPR implements org.apache.thrift.TBase<tTOPR, tTOPR._Fields>, java.io.Serializable, Cloneable, Comparable<tTOPR> {
  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("tTOPR");

  private static final org.apache.thrift.protocol.TField CDIPAPP_FIELD_DESC = new org.apache.thrift.protocol.TField("CDIPAPP", org.apache.thrift.protocol.TType.I64, (short)1);
  private static final org.apache.thrift.protocol.TField COPR_FIELD_DESC = new org.apache.thrift.protocol.TField("COPR", org.apache.thrift.protocol.TType.STRING, (short)2);
  private static final org.apache.thrift.protocol.TField CTERATT_FIELD_DESC = new org.apache.thrift.protocol.TField("CTERATT", org.apache.thrift.protocol.TType.STRING, (short)3);
  private static final org.apache.thrift.protocol.TField CUBS_FIELD_DESC = new org.apache.thrift.protocol.TField("CUBS", org.apache.thrift.protocol.TType.STRING, (short)4);
  private static final org.apache.thrift.protocol.TField DSESATT_FIELD_DESC = new org.apache.thrift.protocol.TField("DSESATT", org.apache.thrift.protocol.TType.STRING, (short)5);
  private static final org.apache.thrift.protocol.TField SAZILST_FIELD_DESC = new org.apache.thrift.protocol.TField("SAZILST", org.apache.thrift.protocol.TType.STRING, (short)6);
  private static final org.apache.thrift.protocol.TField XOPR_FIELD_DESC = new org.apache.thrift.protocol.TField("XOPR", org.apache.thrift.protocol.TType.STRING, (short)7);
  private static final org.apache.thrift.protocol.TField XSTT_FIELD_DESC = new org.apache.thrift.protocol.TField("XSTT", org.apache.thrift.protocol.TType.STRING, (short)8);

  private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new tTOPRStandardSchemeFactory();
  private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new tTOPRTupleSchemeFactory();

  public long CDIPAPP; // optional
  public java.lang.String COPR; // optional
  public java.lang.String CTERATT; // optional
  public java.lang.String CUBS; // optional
  public java.lang.String DSESATT; // optional
  public java.lang.String SAZILST; // optional
  public java.lang.String XOPR; // optional
  public java.lang.String XSTT; // optional

  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
...
}
....
..
  private static class tTOPRStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
    public tTOPRStandardScheme getScheme() {
      return new tTOPRStandardScheme();
    }
  }
..
..
}