开发代码注意事项

1.如果是涉及到修改与删除的，要对参数进行非空判断，或者写特定语句，常用的是断言类或者抛异常

eg:1.注意如果字段是Integer类型传值为0时，在Mapper.xml中被 条件过滤
Integer类型只做“null”的判断，不做空的判断

<if test="param.isFinalGenerate !=null" >
          AND is_final_generate = #{param.isFinalGenerate}
      </if>

eg:2.断言类

/*
 * Copyright 2019-2029 geekidea(https://github.com/geekidea)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.yunping.framework.common.api;

import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
import com.baomidou.mybatisplus.core.toolkit.ObjectUtils;
import com.baomidou.mybatisplus.extension.api.IErrorCode;
import com.baomidou.mybatisplus.extension.exceptions.ApiException;
import com.yunping.framework.common.exception.BusinessException;
import com.yunping.framework.common.exception.VerifyException;
import org.springframework.util.StringUtils;

import java.util.Collection;
import java.util.Map;

/**
 * <p>
 * REST API 业务断言<br>
 * 参考：org.junit.Assert
 * </p>
 *
 * @author geekidea
 * @since 2018-11-08
 */
public class Assert {

    protected Assert() {
        // to do noting
    }

    /**
     * 大于O
     */
    public static void gtZero(Integer num, IErrorCode errorCode) {
        if (num == null || num >= 0) {
            Assert.fail(errorCode);
        }
    }
    public static void gtZero(Integer num, ApiCode errorCode) {
        if (num == null || num > 0) {
            Assert.failCode(errorCode);
        }
    }


    /**
     * 功能描述  小于
     * @Author Solming
     * @Date 17:51 2021/4/7
     * @Param [num, errorCode]
     * @return void
     **/
    public static void ltZero(Integer num, ApiCode errorCode) {
        if (num == null || num < 0) {
            Assert.failCode(errorCode);
        }
    }

    public static void ltZero(Long num, ApiCode errorCode) {
        if (num == null || num < 0) {
            Assert.failCode(errorCode);
        }
    }
    /**
     * 大于等于O
     */
    public static void geZero(Integer num, IErrorCode errorCode) {
        if (num == null || num < 0) {
            Assert.fail(errorCode);
        }
    }
    /**
     * num1大于num2
     */
    public static void gt(Integer num1, Integer num2, String tigMsg) {
        if (num1 > num2) {
            Assert.verifyFail(tigMsg);
        }
    }
    /**
     * num1大于等于num2
     */
    public static void ge(Integer num1, Integer num2, IErrorCode errorCode) {
        if (num1 < num2) {
            Assert.fail(errorCode);
        }
    }

    /**
     * obj1 eq obj2
     */
    public static void eq(Object obj1, Object obj2, IErrorCode errorCode) {
        if (!obj1.equals(obj2)) {
            Assert.fail(errorCode);
        }
    }

    public static void isTrue(boolean condition, IErrorCode errorCode) {
        if (!condition) {
            Assert.fail(errorCode);
        }
    }

    public static void isTrue(boolean condition, ApiCode apiCode) {
        if (condition) {
            Assert.failCode(apiCode);
        }
    }
    public static void isTrue(boolean condition, String tipMsg) {
        if (condition) {
            Assert.verifyFail(tipMsg);
        }
    }
    public static void isFalse(boolean condition, IErrorCode errorCode) {
        if (condition) {
            Assert.fail(errorCode);
        }
    }

    public static void isFalse(boolean condition, String tipMsg) {
        if (!condition) {
            Assert.verifyFail(tipMsg);
        }
    }

    public static void isFalse(boolean condition, ApiCode apiCode) {
        if (!condition) {
            Assert.failCode(apiCode);
        }
    }
    public static void isNull(IErrorCode errorCode, Object... conditions) {
        if (ObjectUtils.isNotNull(conditions)) {
            Assert.fail(errorCode);
        }
    }
    public static void isNull(Object obj,String tigMsg) {
        if (ObjectUtils.isNull(obj)) {
            Assert.verifyFail(tigMsg);
        }
    }
    public static void isNull(Object obj,ApiCode apiCode) {
        if (ObjectUtils.isNull(obj)) {
            Assert.failCode(apiCode);
        }
    }


    public static void notNull(IErrorCode errorCode, Object... conditions) {
        if (ObjectUtils.isNull(conditions)) {
            Assert.fail(errorCode);
        }
    }

    public static void notNull(Object obj,String tigMsg) {
        if (ObjectUtils.isNotNull(obj)) {
            Assert.verifyFail(tigMsg);
        }
    }

    public static void notNull(Object obj,ApiCode apiCode) {
        if (ObjectUtils.isNotNull(obj)) {
            Assert.failCode(apiCode);
        }
    }
    /**
     * <p>
     * 失败结果
     * </p>
     *
     * @param errorCode 异常错误码
     */
    public static void fail(IErrorCode errorCode) {
        throw new ApiException(errorCode);
    }
    public static void verifyFail(String message) {
        throw new VerifyException(message);
    }
    public static void failCode(ApiCode apiCode) {
        throw new BusinessException(apiCode);
    }
    public static void fail(boolean condition, IErrorCode errorCode) {
        if (condition) {
            Assert.fail(errorCode);
        }
    }

    public static void fail(String message) {
        throw new ApiException(message);
    }

    public static void fail(boolean condition, String message) {
        if (condition) {
            Assert.fail(message);
        }
    }

    public static void notEmpty(Object[] array, IErrorCode errorCode) {
        if (ObjectUtils.isEmpty(array)) {
            Assert.fail(errorCode);
        }
    }

    public static void noNullElements(Object[] array, IErrorCode errorCode) {
        if (array != null) {
            for (Object element : array) {
                if (element == null) {
                    Assert.fail(errorCode);
                }
            }
        }
    }

    public static void notEmpty(Collection<?> collection, IErrorCode errorCode) {
        if (CollectionUtils.isNotEmpty(collection)) {
            Assert.fail(errorCode);
        }
    }

    public static void isEmpty(String str, ApiCode apiCode) {
        if (StringUtils.isEmpty(str)) {
            Assert.failCode(apiCode);
        }
    }
    public static void isEmpty(String str, String tipMsg) {
        if (StringUtils.isEmpty(str)) {
            Assert.verifyFail(tipMsg);
        }
    }
    public static void isEmpty(Collection collection, String tipMsg) {
        if (CollectionUtils.isEmpty(collection)) {
            Assert.verifyFail(tipMsg);
        }
    }
    public static void isEmpty(Collection collection, ApiCode apiCode) {
        if (CollectionUtils.isEmpty(collection)) {
            Assert.failCode(apiCode);
        }
    }

    public static void notEmpty(Map<?, ?> map, IErrorCode errorCode) {
        if (ObjectUtils.isEmpty(map)) {
            Assert.fail(errorCode);
        }
    }

    public static void isInstanceOf(Class<?> type, Object obj, IErrorCode errorCode) {
        Assert.notNull(errorCode, type);
        if (!type.isInstance(obj)) {
            Assert.fail(errorCode);
        }
    }

    public static void isAssignable(Class<?> superType, Class<?> subType, IErrorCode errorCode) {
        Assert.notNull(errorCode, superType);
        if (subType == null || !superType.isAssignableFrom(subType)) {
            Assert.fail(errorCode);
        }
    }





}

eg:3.抛异常

      if (vo.getMessContentType()==null || StringUtils.isBlank(vo.getMessContent())){
            throw new RuntimeException("参数缺失");
        }

2.sql语句不能用$防止sql注入

3.如果你是微服务，不要嫌麻烦要根据三层架构模式，不然后面扩展很麻烦，都写在Controller层显然不对

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