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zxs-learning-spring-cloud's Introduction

Jeecg-Boot 低代码开发平台

当前最新版本: 2.4.3(发布日期:20210322)

后端技术架构

  • 基础框架:Spring Boot 2.3.5.RELEASE

  • 持久层框架:Mybatis-plus 3.4.1

  • 安全框架:Apache Shiro 1.7.0,Jwt 3.11.0

  • 数据库连接池:阿里巴巴Druid 1.1.22

  • 缓存框架:redis

  • 日志打印:logback

  • 其他:fastjson,poi,Swagger-ui,quartz, lombok(简化代码)等。

开发环境

  • 语言:Java 8

  • IDE(JAVA): Eclipse安装lombok插件 或者 IDEA

  • 依赖管理:Maven

  • 数据库:MySQL5.7+ & Oracle 11g

  • 缓存:Redis

技术文档

专项文档

一、查询过滤器用法

QueryWrapper<?> queryWrapper = QueryGenerator.initQueryWrapper(?, req.getParameterMap());

代码示例:


	@GetMapping(value = "/list")
	public Result<IPage<JeecgDemo>> list(JeecgDemo jeecgDemo, @RequestParam(name = "pageNo", defaultValue = "1") Integer pageNo, 
	                                     @RequestParam(name = "pageSize", defaultValue = "10") Integer pageSize,
			HttpServletRequest req) {
		Result<IPage<JeecgDemo>> result = new Result<IPage<JeecgDemo>>();
		
		//调用QueryGenerator的initQueryWrapper
		QueryWrapper<JeecgDemo> queryWrapper = QueryGenerator.initQueryWrapper(jeecgDemo, req.getParameterMap());
		
		Page<JeecgDemo> page = new Page<JeecgDemo>(pageNo, pageSize);
		IPage<JeecgDemo> pageList = jeecgDemoService.page(page, queryWrapper);
		result.setSuccess(true);
		result.setResult(pageList);
		return result;
	}

  • 查询规则 (本规则不适用于高级查询,高级查询有自己对应的查询类型可以选择 )
查询模式 用法 说明
模糊查询 支持左右模糊和全模糊 需要在查询输入框内前或后带*或是前后全部带*
取非查询 在查询输入框前面输入! 则查询该字段不等于输入值的数据(数值类型不支持此种查询,可以将数值字段定义为字符串类型的)
> >= < <= 同取非查询 在输入框前面输入对应特殊字符即表示走对应规则查询
in查询 若传入的数据带,(逗号) 则表示该查询为in查询
多选字段模糊查询 上述4 有一个特例,若某一查询字段前后都带逗号 则会将其视为走这种查询方式 ,该查询方式是将查询条件以逗号分割再遍历数组 将每个元素作like查询 用or拼接,例如 现在name传入值 ,a,b,c, 那么结果sql就是 name like '%a%' or name like '%b%' or name like '%c%'

二、AutoPoi(EXCEL工具类-EasyPOI衍变升级重构版本)

在线文档

三、代码生成器

功能说明: 一键生成的代码(包括:controller、service、dao、mapper、entity、vue)

四、编码排重使用示例

重复校验效果: 输入图片说明

1.引入排重接口,代码如下:

import { duplicateCheck } from '@/api/api'

2.找到编码必填校验规则的前端代码,代码如下:

<a-input placeholder="请输入编码" v-decorator="['code', validatorRules.code ]"/>

code: {
            rules: [
              { required: true, message: '请输入编码!' },
              {validator: this.validateCode}
            ]
          },

3.找到rules里validator对应的方法在哪里,然后使用第一步中引入的排重校验接口.
以用户online表单编码为示例,其中四个必传的参数有:

  {tableName:表名,fieldName:字段名,fieldVal:字段值,dataId:表的主键},

具体使用代码如下:

    validateCode(rule, value, callback){
        let pattern = /^[a-z|A-Z][a-z|A-Z|\d|_|-]{0,}$/;
        if(!pattern.test(value)){
          callback('编码必须以字母开头,可包含数字、下划线、横杠');
        } else {
          var params = {
            tableName: "onl_cgreport_head",
            fieldName: "code",
            fieldVal: value,
            dataId: this.model.id
          };
          duplicateCheck(params).then((res)=>{
            if(res.success){
             callback();
            }else{
              callback(res.message);
            }
          })
        }
      },

docker镜像用法

注意: 如果本地安装了mysql和redis,启动容器前先停掉本地服务,不然会端口冲突。
      net stop redis
      net stop mysql

# 1.修改项目配置文件 application.yml
   active: docker

# 2.先进JAVA项目根路径 maven打包
   mvn clean package


# 3.构建镜像__容器组(当你改变本地代码,也可重新构建镜像)
   docker-compose build

# 4.配置host

   # jeecgboot
   127.0.0.1   jeecg-boot-redis
   127.0.0.1   jeecg-boot-mysql
   127.0.0.1   jeecg-boot-system

# 5.启动镜像__容器组(也可取代运行中的镜像)
   docker-compose up -d

# 6.访问后台项目(注意要开启swagger)
   http://localhost:8080/jeecg-boot/doc.html

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