java 反向工具类

1.ReflectUtil.java

 package com.example.scansell;

 import android.util.Log;

 import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.lang.reflect.Parameter;

 public class ReflectUtil {

     private static String getModifier(int i){
         switch (i){
             case   :
             case   : return "public";
             case   : return "private";
             case   : return "public static";
             case  : return "private static";

             case  : return "private final";
             case  : return "public static final";
         }
         return "" + i;
     }

     public static void printClass(Class clazz){
         Log.e("ReflectUtil", "printAllMethods");

         Class supper = clazz.getSuperclass();
         Class interfaces[] = clazz.getInterfaces();
         String data = " \n\n\n---------------------class.info -------------------\n\n";
         data  += "package = " + clazz.getPackage()
                 + "\nname = " + clazz.getName()
                 + "\ntypeName = " + clazz.getTypeName()
                 + "\nsimpleName = " + clazz.getSimpleName()
                 + "\nCanonicalName = " + clazz.getCanonicalName()
                 + "\nextends = " + supper.getCanonicalName()
                 + "\nimplements [ " + interfaces.length + " ]  = ";
         for (int i = ; i < interfaces.length; ++i){
             Class intfc = interfaces[i];
             data += intfc.getCanonicalName() + ( i < interfaces.length -  ? "," : "") ;
         }
         Log.e("ReflectUtil", data + "\n\n\n");

         Constructor[] cons = clazz.getDeclaredConstructors();
         data = " \n\n\n---------------------所有构造方法 [" + cons.length + "]-------------------\n\n";

         for (Constructor constructor : cons){
             data += getModifier(constructor.getModifiers()) + "\t" + constructor.getName() +  "( ";
             Parameter parameters[] = constructor.getParameters();
             for (int i =  ;i < parameters.length;++i){
                 Parameter parameter = parameters[i];
                 data += parameter.getType().getSimpleName() + (i < parameters.length -  ?  "," : "");
             }
             data += " )\n";
         }
         Log.e("ReflectUtil", data + "\n\n\n");

         cons = clazz.getConstructors();
         data = " \n\n\n---------------------公开构造方法 [" + cons.length + "]-------------------\n\n";
         for (Constructor constructor : cons){
             data += getModifier(constructor.getModifiers()) + "\t" + constructor.getName() + "( ";
             Parameter parameters[] = constructor.getParameters();
             for (int i =  ;i < parameters.length;++i){
                 Parameter parameter = parameters[i];
                 data += parameter.getType().getSimpleName() + (i < parameters.length -  ?  "," : "");
             }
             data += " )\n";
         }
         Log.e("ReflectUtil", data + "\n\n\n");

         Method[] methods = clazz.getDeclaredMethods();
         data = " \n\n\n---------------------类方法（不含基类） [" + methods.length + "]-------------------\n\n";
         for (Method method : methods){
             data += getModifier(method.getModifiers()) + "\t" + method.getName() + "( " ;
             Parameter parameters[] = method.getParameters();
             for (int i =  ;i < parameters.length;++i){
                 Parameter parameter = parameters[i];
                 data += parameter.getType().getSimpleName() + (i < parameters.length -  ?  "," : "");
             }
             data += " )\n";
         }
         Log.e("ReflectUtil", data + "\n\n\n");

         methods = clazz.getMethods();
         data = " \n\n\n---------------------类方法（含基类）  [" + methods.length + "]-------------------\n\n";
         for (Method method : methods){
             data += getModifier(method.getModifiers()) + "\t" + method.getName() + "( ";
             Parameter parameters[] = method.getParameters();
             for (int i =  ;i < parameters.length;++i){
                 Parameter parameter = parameters[i];
                 data += parameter.getType().getSimpleName() + (i < parameters.length -  ?  "," : "");
             }
             data += " )\n";
         }
         Log.e("ReflectUtil", data + "\n\n\n");

         Field[] fields = clazz.getFields();
         data = " \n\n\n---------------------类公开属性（含基类）  [" + fields.length + "]-------------------\n\n";
         for (Field field : fields){
             data += getModifier(field.getModifiers()) + "\t" + field.getType().getSimpleName() + "\t" + field.getName() ;
             data += "\n";
         }
         Log.e("ReflectUtil", data + "\n\n\n");

         fields = clazz.getDeclaredFields();
         data = " \n\n\n---------------------类定义的属性（不含基类）  [" + fields.length + "]-------------------\n\n";
         for (Field field : fields){
             data += getModifier(field.getModifiers()) + "\t" + field.getType().getSimpleName() + "\t" + field.getName() ;
             data += "\n";
         }
         Log.e("ReflectUtil", data + "\n\n\n");

         Log.e("ReflectUtil", " printAllMethods : ==========-------=========== =======\n\n\n" );
     }
 }

ReflectUtil