package com.funtester.utils
import com.funtester.base.exception.FailException
import java.lang.reflect.Fieldimport java.lang.reflect.InvocationTargetExceptionimport java.lang.reflect.Method
/** * 私有变量访问工具类,可用于final修饰的变量 */class PriUtil {
    /***     * 获取私有成员变量的值     *     */    static <F> F get(Object instance, String name, Class<F> f) {        try {            Field field = instance.getClass().getDeclaredField(name);            field.setAccessible(true); // 参数值为true，禁止访问控制检查
            return (F) field.get(instance);        } catch (NoSuchFieldException | IllegalAccessException e) {            FailException.fail("获取${instance.toString()}私有变量$name 失败 ${e.getMessage()}");        }    }
    /***     * 设置私有成员变量的值     *     */    static void set(Object instance, String fileName, Object value) throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
        Field field = instance.getClass().getDeclaredField(fileName);        field.setAccessible(true);        field.set(instance, value);    }
    /***     * 访问私有方法     *     */    static <F> F call(Object instance, String name, Class<F> r, Class[] parameterTypes, Object[] params) {        Method method = instance.getClass().getDeclaredMethod(name, parameterTypes);        method.setAccessible(true);        return (F) method.invoke(instance, params);    }
    /**     * 获取static变量     * @param c     * @param name     * @param f     * @return     */    static <F> F get(Class c, String name, Class<F> f) {        Field[] fields = c.getDeclaredFields();        try {            for (Field field : fields) {                field.setAccessible(true);                if (field.getType() == f && field.getName().equals(name))                    return (F) field.get(c);            }        } catch (Exception e) {            FailException.fail("获取${c.name}私有变量$name 失败 ${e.getMessage()}");        }    }
    /**     * 设置static变量     * @param c     * @param name     * @param f     */    static void set(Class c, String name, Object f) {        Field[] fields = c.getDeclaredFields();        for (Field field : fields) {            field.setAccessible(true);            if (field.getName().equals(name))                field.set(c, f)        }    }
    /**     * 调用私有static方法     * @param c     * @param name     * @param r     * @param parameterTypes     * @param params     * @return     */    static <F> Object call(Class c, String name, Class<F> r, Class[] parameterTypes, Object[] params) {        try {            Method method = c.getMethod(name, parameterTypes);            method.setAccessible(true);            return (F) method.invoke(null, params);        } catch (NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {            FailException.fail("执行${c.name}私有方法$name 失败,参数 ${e.getMessage()}")        }    }
}

/** * 反射访问private测试类 */public class PriBase {
    private String name = "FunTester";
    private static String cname = "CFunTester";
}

import com.funtester.frame.SourceCodeimport com.funtester.utils.PriUtil
class PriTest extends SourceCode{
    public static void main(String[] args) {        PriBase base = new PriBase()        PriUtil.set(base,"name","修改后name")        String get = PriUtil.get(base, "name", String.class)        output(get)        PriBase base1 = new PriBase()        String get1 = PriUtil.get(base1, "name", String.class)        output(get1)    }}

INFO-> main 当前用户：oker，工作目录：/Users/oker/IdeaProjects/funtester/,系统编码格式:UTF-8,系统Mac OS X版本:10.16INFO-> main   ###### #     #  #    # ####### ######  #####  ####### ######  #####  #      #     #  ##   #    #    #       #         #    #       #    #  ####   #     #  # #  #    #    ####    #####     #    ####    #####  #      #     #  #  # #    #    #            #    #    #       #   #  #       #####   #    #    #    ######  #####     #    ######  #    #
INFO-> main 修改后nameINFO-> main FunTester
Process finished with exit code 0

import com.funtester.frame.SourceCodeimport com.funtester.utils.PriUtil
class PriTest extends SourceCode{
    public static void main(String[] args) {        PriUtil.set(PriBase.class,"cname","修改后name")        String get = PriUtil.get(PriBase.class, "cname", String.class)        output(get)    }}

INFO-> main 当前用户：oker，工作目录：/Users/oker/IdeaProjects/funtester/,系统编码格式:UTF-8,系统Mac OS X版本:10.16INFO-> main   ###### #     #  #    # ####### ######  #####  ####### ######  #####  #      #     #  ##   #    #    #       #         #    #       #    #  ####   #     #  # #  #    #    ####    #####     #    ####    #####  #      #     #  #  # #    #    #            #    #    #       #   #  #       #####   #    #    #    ######  #####     #    ######  #    #
INFO-> main 修改后name
Process finished with exit code 0