Beetl是Bee Template Language的缩写，它绝不是简单的另外一种模板引擎，而是新一代的模板引擎，它功能强大，性能良好，超过当前流行的模板引擎。而且还易学易用。
BeetSql是一个全功能DAO工具， 同时具有Hibernate 优点 & Mybatis优点功能，适用于承认以SQL为中心，同时又需求工具能自动能生成大量常用的SQL的应用。
下面将实现其与springboot的整合，完成一个简单的分页功能：
1、新建一个springboot项目取名springboot-beetlsql
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.carry.beetl</groupId> <artifactId>springboot-beetlsql</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>springboot-beetlsql</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.3.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <ibeetl.version>1.1.40.RELEASE</ibeetl.version> <mysql.version>6.0.5</mysql.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.ibeetl</groupId> <artifactId>beetl-framework-starter</artifactId> <version>${ibeetl.version}</version> </dependency> <dependency> <groupId>com.zaxxer</groupId> <artifactId>HikariCP</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
2、整合BeetSql的相关配置修改application.properties文件，添加DataSourceConfig文件
#mysql数据库连接配置 spring.datasource.url=jdbc:mysql://192.168.68.110:3306/test?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8 spring.datasource.username=root spring.datasource.password=123456Abc! spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver #beetelsql的配置 beetlsql.basePackage=com.carry.beetl.dao beetl-beetlsql.dev=true #热部署的配置 spring.devtools.restart.enabled=true
package com.carry.beetl.config; import com.zaxxer.hikari.HikariDataSource; 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 javax.sql.DataSource; @Configuration public class DataSourceConfig { @Bean(name = "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 public BeetlSqlDataSource beetlSqlDataSource(@Qualifier("dataSource") DataSource dataSource) { BeetlSqlDataSource source = new BeetlSqlDataSource(); source.setMasterSource(dataSource); return source; } }
3、整合Beetl相关配置
在项目启动文件SpringbootBeetlsqlApplication中加入以下内容：
@Bean(initMethod = "init", name = "beetlConfig") public BeetlGroupUtilConfiguration getBeetlGroupUtilConfiguration() { BeetlGroupUtilConfiguration beetlGroupUtilConfiguration = new BeetlGroupUtilConfiguration(); ResourcePatternResolver patternResolver = ResourcePatternUtils.getResourcePatternResolver(new DefaultResourceLoader()); try { // WebAppResourceLoader 配置root路径是关键 WebAppResourceLoader webAppResourceLoader = new WebAppResourceLoader(patternResolver.getResource("classpath:/").getFile().getPath()); beetlGroupUtilConfiguration.setResourceLoader(webAppResourceLoader); } catch (IOException e) { e.printStackTrace(); } //读取配置文件信息 return beetlGroupUtilConfiguration; } @Bean(name = "beetlViewResolver") public BeetlSpringViewResolver getBeetlSpringViewResolver(@Qualifier("beetlConfig") BeetlGroupUtilConfiguration beetlGroupUtilConfiguration) { BeetlSpringViewResolver beetlSpringViewResolver = new BeetlSpringViewResolver(); beetlSpringViewResolver.setPrefix("templates/");//配置页面路径前缀 beetlSpringViewResolver.setContentType("text/html;charset=UTF-8"); beetlSpringViewResolver.setOrder(0); beetlSpringViewResolver.setConfig(beetlGroupUtilConfiguration); return beetlSpringViewResolver; }
在resources目录新建文件beetl.properties
#配置模板引擎,如不配置可能会导致页面再次访问时报错 ENGINE=org.beetl.core.engine.DefaultTemplateEngine #开始定界符 DELIMITER_STATEMENT_START=@ #结束定界符 DELIMITER_STATEMENT_END=
4、现在可以动手写代码了
新建实体类User
package com.carry.beetl.entity; import java.io.Serializable; import java.util.Date; public class User implements Serializable { private static final long serialVersionUID = 1L; private Integer id; private Integer departmentId; private String name; private Date createTime; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public Integer getDepartmentId() { return departmentId; } public void setDepartmentId(Integer departmentId) { this.departmentId = departmentId; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Date getCreateTime() { return createTime; } public void setCreateTime(Date createTime) { this.createTime = createTime; } }
对应的表user的DDL
CREATE TABLE `user` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(45) COLLATE utf8_bin DEFAULT NULL COMMENT '名称', `department_id` int(11) DEFAULT NULL, `create_time` date DEFAULT NULL COMMENT '创建时间', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
新建数据访问接口UserDao继承BaseMapper（BaseMapper中有很多内置的基础实现，具体可以查看官方文档）
package com.carry.beetl.dao; import java.util.List; import org.beetl.sql.core.mapper.BaseMapper; import com.carry.beetl.entity.User; public interface UserDao extends BaseMapper<User> { }
新建控制IndexController，由于功能简单直接在controller中注入dao无需service
package com.carry.beetl.controller; import javax.servlet.http.HttpServletRequest; import org.beetl.sql.core.engine.PageQuery; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import com.carry.beetl.dao.UserDao; import com.carry.beetl.entity.User; @Controller public class IndexController { @Autowired UserDao userDao; @RequestMapping("/index.html") public String index(HttpServletRequest req) { queryPage(req, 1); return "index.html"; } @RequestMapping("/indexTopData.html") public String top10(HttpServletRequest req, Integer pageNo) { if(pageNo == null) { pageNo = 1; } queryPage(req, pageNo); return "/index.html#topData"; } private void queryPage(HttpServletRequest req, int pageNo) { PageQuery<User> query = new PageQuery<User>(); query.setPageNumber(pageNo); query.setPageSize(10); userDao.templatePage(query); req.setAttribute("users", query.getList()); req.setAttribute("pageNo", query.getPageNumber()); req.setAttribute("totalPage", query.getTotalPage()); req.setAttribute("totalRow", query.getTotalRow()); } }
最后在templates目录里新建我们的页面index.html
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>index</title> <script src="${ctxPath}/js/jquery.min.js"></script> <script type="text/javascript"> function prev() { var pageNo = parseInt($("#pageNo").text()); if (pageNo <= 1) { pageNo = 1; } else { pageNo -= 1; } $("#topData").load("/indexTopData.html?pageNo=" + pageNo) } function next() { var pageNo = parseInt($("#pageNo").text()); var totalPage = parseInt($("#totalPage").text()); if (pageNo >= totalPage) { pageNo = totalPage; } else { pageNo += 1; } $("#topData").load("/indexTopData.html?pageNo=" + pageNo) } </script> </head> <body> <div style=" 600px;; margin: 0 auto;"> <div> <H1>beetl+beetlSql ajax测试</H1> </div> <div id="topData"> @#ajax topData: { <table style="border-collapse: collapse;text-align: center;"> <tr> <th width=100>序号</th> <th width=100>ID</th> <th width=100>姓名</th> <th width=100>创建日期</th> </tr> @for(user in users){ <tr @if(userLP.odd){ style = "background: red;" @}else{ style = "background: yellow;" @} > <td>${userLP.index}</td> <td>${user.id}</td> <td>${user.name}</td> <td>${user.createTime, dateFormat="yyyy-MM-dd"}</td> </tr> @} </table> 共有${totalRow!0}条记录分<span id="totalPage">${totalPage!0}</span>页 @if(pageNo == 1){ <span>上一页</span> @}else{ <a href="javascript: prev();">上一页</a> @} <span id="pageNo">${pageNo!1}</span> @if(pageNo == totalPage){ <span>下一页</span> @}else{ <a href="javascript: next();">下一页</a> @} @} </div> </div> </body> </html>
注意：定界符@需要独占一行不要回解析错误，文件引用到jQuery需要在static目录下添加jquery.min.js文件
5、运行springboot项目