push-saas/saas-backen/src/main/java/com/pavis/app/saasbacken/utils/PageSettingUtils.java

package com.pavis.app.saasbacken.utils;

import com.alibaba.fastjson.JSON;
import io.swagger.annotations.ApiModelProperty;

import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @program: push-saas
 * @description:
 * @author: Guanzi
 * @created: 2021/11/08 16:44
 */
public class PageSettingUtils {

    /**
     * 根据实体类获取对应的key-value。
     *
     * @param instance 实体类对象。
     * @param fieldMap 待忽略的属性。
     * @return
     * @throws NoSuchFieldException
     */
    // public static Map<String, String> getDeclaredFieldsInfo(Object instance, JSONObject jsonObject) throws NoSuchFieldException {
    public static Map<String, String> getDeclaredFieldsInfo(Object instance, Map<String, String> fieldMap) throws NoSuchFieldException {

        Map<String, String> map = new HashMap();
        Class<?> clazz = instance.getClass();
        Field[] fields = clazz.getDeclaredFields();
        boolean b = false;
        for (int i = 0; i < fields.length; i++) {
            System.out.println("i:" + fields[i].getName());
            // 除过fieldMap中的属性，其他属性都获取
            if (!fieldMap.containsKey(fields[i].getName())) {
                System.err.println("********" + fields[i].getName());
                // Field field=clazz.getDeclaredField(fields[i].getName());
                boolean annotationPresent = fields[i].isAnnotationPresent(ApiModelProperty.class);
                if (annotationPresent) {
                    // 获取注解值
                    String name = fields[i].getAnnotation(ApiModelProperty.class).value();
                    map.put(name, fields[i].getName());
                }
            }
        }
        return map;
    }

    /**
     * 根据实体类获取对应的key-value。
     *
     * @param instance 实体类对象。
     * @param fieldMap 待忽略的属性。
     * @return
     * @throws NoSuchFieldException
     */
    // public static Map<String, String> getDeclaredFieldsInfo(Object instance, JSONObject jsonObject) throws NoSuchFieldException {
    public static List<Map<String,String>> getDeclaredFields(Object instance, Map<String, String> fieldMap) throws NoSuchFieldException {

        Class<?> clazz = instance.getClass();
        Field[] fields = clazz.getDeclaredFields();
        boolean b = false;
        List<Map<String,String>> maps = new ArrayList<>();
        for (int i = 0; i < fields.length; i++) {
            Map<String, String> map = new HashMap();
            System.out.println("i:" + fields[i].getName());
            // 除过fieldMap中的属性，其他属性都获取
            if (!fieldMap.containsKey(fields[i].getName())) {
                System.err.println("********" + fields[i].getName());
                // Field field=clazz.getDeclaredField(fields[i].getName());
                boolean annotationPresent = fields[i].isAnnotationPresent(ApiModelProperty.class);
                if (annotationPresent) {
                    // 获取注解值
                    String name = fields[i].getAnnotation(ApiModelProperty.class).value();
                    map.put(name, fields[i].getName());
                    maps.add(map);
                }
            }
        }
        System.err.println("maps:" + JSON.toJSONString(maps));
        return maps;
    }
}