SpringBoot整合ibeetlSQL的简单实现（附：踩到的坑）
1.新建maven工程
Next:
Finish
2.在pom.xml中添加依赖
3.搭建框架
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对应的文件：
①DataSourceConfig类
package com.springboot.beetlsql.conf;
import javax.sql.DataSource;
import org.beetl.sql.ext.spring4.BeetlSqlDataSource;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import com.zaxxer.hikari.HikariDataSource;
@Configuration
public class DataSourceConfig {
@Bean("dataSource")
public DataSource dataSource(Environment env) {
HikariDataSource ds = new HikariDataSource();
ds.setJdbcUrl(env.getProperty("spring.datasource.url"));
ds.setUsername(env.getProperty("spring.datasource.username"));
ds.setPassword(env.getProperty("spring.datasource.password"));
ds.setDriverClassName(env.getProperty("spring.datasource.driver-class-name"));
return ds;
}
@Bean("beetlSqlDataSource")
public BeetlSqlDataSource beetlSqlDataSource(@Qualifier("dataSource") DataSource dataSource) {
BeetlSqlDataSource source = new BeetlSqlDataSource();
source.setMasterSource(dataSource);
return source;
}
}
②UserDao接口
package com.springboot.beetlsql.dao;
import org.beetl.sql.core.annotatoin.SqlResource;
import org.beetl.sql.core.mapper.BaseMapper;
import com.springboot.beetlsql.entity.User;
@SqlResource("ibeetlsql.user ")
public interface UserDao extends BaseMapper
User selectUserById(@Param("number") Integer pk); // 更新，之前是User selectUserById(Integer pk);
}
---------2018.11.12--update----------
对应的user.md文件：
---------2018.11.12--update----------
UserService类
package com.springboot.beetlsql.service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.springboot.beetlsql.dao.UserDao;
import com.springboot.beetlsql.entity.User;
@Service("userService")
public class UserService {
@Autowired
UserDao userDao;
public User selectUserById(int i){
return userDao.selectUserById(i);
}
}
④UserController类
package com.springboot.beetlsql.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.springboot.beetlsql.entity.User;
import com.springboot.beetlsql.service.UserService;
@Controller
public class UserController {
@Autowired UserService userService;
@RequestMapping("/selectUser")
@ResponseBody
public User selectUser(){
return userService.selectUserById(1);
}
}
⑤User类
package com.springboot.beetlsql.entity
import java.util.Date;
public class User {
private Integer id;
private String name;
private Integer departmentId;
private Date createTime;
\\省略setter、getter
}
⑥application.properties文件
spring.datasource.url=jdbc:mysql://localhost:33306/orm?useUnicode=true&characterEncoding=UTF-8
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
beetlsql.basePackage=com
beetl-beetlsql.dev=true
spring.devtools.restart.enabled=true
mysql建表语句、插入值语句：
CREATE TABLE `user` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`name` varchar(45) NOT NULL COMMENT '名称',
`department_id` int(10) unsigned NOT NULL,
`create_time` date NOT NULL COMMENT '创建时间',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
INSERT INTO `user` (`id`,`name`,`department_id`,`create_time`) VALUES (1,'juwenzhe',101,'2018-11-08');
commit;
--------2018.11.12 新增SpringBoot整合ibeetlSQL的分页查询简单实现---------
最后，启动项目：
访问：http://localhost:8080/selectUser
返回：{"id":1,"name":"juwenzhe","departmentId":101,"createTime":"2018-11-07T16:00:00.000+0000"}
参考文献：
1. SpingBoot与BeetlSQL结合 https://blog.csdn.net/Ancony_/article/details/81091164
2. springboot整合 beatlsql的实例代码 https://www.jb51.net/article/112900.htm
附：遇到的坑
1.参考文献1中，spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
报错：找不到数据源驱动，具体错误如下：
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'beetlSqlScannerConfigurer' defined in class path resource [com/ibeetl/starter/BeetlSqlConfig.class]: Unsatisfied dependency expressed through method 'getBeetlSqlScannerConfigurer' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sqlManagerFactoryBean' defined in class path resource [com/ibeetl/starter/BeetlSqlConfig.class]: Unsatisfied dependency expressed through method 'getSqlManagerFactoryBean' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'beetlSqlDataSource' defined in class path resource [com/ibeetl/starter/BeetlSqlConfig.class]: Unsatisfied dependency expressed through method 'beetlSqlDataSource' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [com/juwenzhe/springboot/conf/DataSourceConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'datasource' threw exception; nested exception is java.lang.RuntimeException: Failed to load driver class com.mysql.cj.jdbc.Driver in either of HikariConfig class loader or Thread context classloader
改成前面文档写的：spring.datasource.driver-class-name=com.mysql.jdbc.Driver
2.报错如下：
Parameter 0 of method beetlSqlDataSource in com.ibeetl.starter.BeetlSqlConfig required a bean of type 'javax.sql.DataSource' that could not be found.
- Bean method 'dataSource' not loaded because @ConditionalOnProperty (spring.datasource.type) did not find property 'spring.datasource.type'
- Bean method 'dataSource' not loaded because @ConditionalOnProperty (spring.datasource.jndi-name) did not find property 'jndi-name'
- Bean method 'dataSource' not loaded because @ConditionalOnClass did not find required class 'javax.transaction.TransactionManager'
错误原因：缺少@Bean("beetlSqlDataSource")配置，具体配置参考改正后的DataSourceConfig类
3.报错如下：
错误原因：service不是SpringBoot中Tomcat容器的类，更不是spring管理的类，所以没有实例化，也就是null。不能在这个Main方法里写测试，正确的测试还是访问：http://localhost:8080/selectUser