java教程——电商秒杀系统实战&&集成环境mybatis&springboot

ゝ一世哀愁。 2021-07-26 00:41 366阅读 0赞

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70]

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QQ 1285575001  
Wechat M010527  
技术交流 QQ群599020441  
纪年科技aming

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![在这里插入图片描述][20191120153220316.png]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 1]

![在这里插入图片描述][20191122201016142.png]

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![在这里插入图片描述][20191120153228316.png]

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*  添加依赖
 *  打开POM
 *  注意版本问题  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 3]

##### 在 application.properties 配置 #####

![在这里插入图片描述][20191201180844422.png]  
![在这里插入图片描述][20191122204325352.png]

*  下划线变驼峰
 *  延时
 *  接口xml配置文件  
    ![在这里插入图片描述][20191201180919725.png]
 *  在 src/main/java 中创建 domain 包
 *  为表 导入 对象

### druid 配置 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 4]

*  数据源url
 *  池子类型
 *  过滤器
 *  最大活动链接
 *  初始大小
 *  等待时间

#### 依赖配置jdbc ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 5]

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![在这里插入图片描述][2019120119034711.png]

#### 设计数据库 ####

![在这里插入图片描述][20191201184151854.png]

*  在 domain 中创建相应 表单 对象Class —>user.java  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 6]  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 7] ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 8]
 *  ALT + shift + S ----->source  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 9]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 10]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 11]

#### 创建 userservice ####

![在这里插入图片描述][20191201192315333.png]  
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#### controller 中引用 service ####

![在这里插入图片描述][20191201192926254.png]  
![在这里插入图片描述][20191201193212866.png]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 14]![在这里插入图片描述][20191201193356891.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 15]![在这里插入图片描述][20191201193626713.png]

### 测试事务 ###

*  controller 创建  
    ![在这里插入图片描述][20191201193807730.png]
 *  userservice中
 *  防止错误数据库操作 抛出异常

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*  userdao中  
    ![在这里插入图片描述][2019120119412475.png]  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzNjA4MDAw_size_16_color_FFFFFF_t_70 17]
 *  加入@ Transaction 防止错误操作
 *  注释掉  
    ![在这里插入图片描述][20191201194744554.png]

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