viewshtml-db03dd5f8c.min.css">

import javax.persistence.Column;
import javax.persistence.Id;
import javax.persistence.Table;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/*_PROTECTED0_ @author caizw
 PROTECTED1_ @description 反射工具类
 PROTECTED2___PROTECTED3_ 获取实体类主键
     PROTECTED4_ @param clazz
     PROTECTED5_/
    public static Field getIdField(Class<?> clazz) {
        Field[] fields = clazz.getDeclaredFields();
        Field item = null;
        for (Field field : fields) {
            Id id = field.getAnnotation(Id.class);
            if (id != null) {
                field.setAccessible(true);
                item = field;
                break;
            }
        }
        if (item == null) {
            Class<?> superclass = clazz.getSuperclass();
            if (superclass != null) {
                item = getIdField(superclass);
            }
        }
        return item;
    }

    /*PROTECTED6_ 根据主键名称获取实体类主键属性值
     PROTECTED7_ @param clazz
     PROTECTED8_ @return
     PROTECTED9___PROTECTED10_ 通过反射将 class1不为空的值赋值给class2
     PROTECTED11_ @param class1
     PROTECTED12_ @throws Exception
     PROTECTED13___PROTECTED14_ 获取实体类 @Column 的其中一个属性名称
     PROTECTED15_ @param clazz
     PROTECTED16_/
    public static Map<String, String> getColumnName(Class<?> clazz) {
        Map<String, String> map = new ConcurrentHashMap<>();
        Field[] fields = clazz.getDeclaredFields();
        for (Field field : fields) {
            if (field.isAnnotationPresent(Column.class)) {
                /*PROTECTED17_ 获取字段名
                 PROTECTED18___PROTECTED19_ 通过获取类上的@Table注解获取表名称
     PROTECTED20_ @param clazz
     PROTECTED21__/
    public static Map<String, String> getTableName(Class<?> clazz) {
        Map<String, String> map = new ConcurrentHashMap<>();
        Table annotation = clazz.getAnnotation(Table.class);
        String name = annotation.name();
        String className = clazz.getSimpleName();
        map.put("tableName", name);
        map.put("className", className);
        return map;
    }
}