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springboot整合 beatlsql的实例代码

作者:方志朋

这篇文章主要介绍了springboot整合 beatlsql的实例代码,BeetSql是一个全功能DAO工具,同时具有hibernate 优点 & Mybatis优点功能,有兴趣的可以了解一下

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。

beatlsql 优点

引入依赖

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-devtools</artifactId>
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupId>com.ibeetl</groupId>
      <artifactId>beetl</artifactId>
      <version>2.3.2</version>

    </dependency>

    <dependency>
      <groupId>com.ibeetl</groupId>
      <artifactId>beetlsql</artifactId>
      <version>2.3.1</version>

    </dependency>

    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.0.5</version>
    </dependency>

这几个依赖都是必须的。

整合阶段

由于springboot没有对 beatlsql的快速启动装配,所以需要我自己导入相关的bean,包括数据源,包扫描,事物管理器等。

在application加入以下代码:

@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:/templates").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.setContentType("text/html;charset=UTF-8");
    beetlSpringViewResolver.setOrder(0);
    beetlSpringViewResolver.setConfig(beetlGroupUtilConfiguration);
    return beetlSpringViewResolver;
  }

  //配置包扫描
  @Bean(name = "beetlSqlScannerConfigurer")
  public BeetlSqlScannerConfigurer getBeetlSqlScannerConfigurer() {
    BeetlSqlScannerConfigurer conf = new BeetlSqlScannerConfigurer();
    conf.setBasePackage("com.forezp.dao");
    conf.setDaoSuffix("Dao");
    conf.setSqlManagerFactoryBeanName("sqlManagerFactoryBean");
    return conf;
  }

  @Bean(name = "sqlManagerFactoryBean")
  @Primary
  public SqlManagerFactoryBean getSqlManagerFactoryBean(@Qualifier("datasource") DataSource datasource) {
    SqlManagerFactoryBean factory = new SqlManagerFactoryBean();

    BeetlSqlDataSource source = new BeetlSqlDataSource();
    source.setMasterSource(datasource);
    factory.setCs(source);
    factory.setDbStyle(new MySqlStyle());
    factory.setInterceptors(new Interceptor[]{new DebugInterceptor()});
    factory.setNc(new UnderlinedNameConversion());//开启驼峰
    factory.setSqlLoader(new ClasspathLoader("/sql"));//sql文件路径
    return factory;
  }


  //配置数据库
  @Bean(name = "datasource")
  public DataSource getDataSource() {
    return DataSourceBuilder.create().url("jdbc:mysql://127.0.0.1:3306/test").username("root").password("123456").build();
  }

  //开启事务
  @Bean(name = "txManager")
  public DataSourceTransactionManager getDataSourceTransactionManager(@Qualifier("datasource") DataSource datasource) {
    DataSourceTransactionManager dsm = new DataSourceTransactionManager();
    dsm.setDataSource(datasource);
    return dsm;
  }

在resouces包下,加META_INF文件夹,文件夹中加入spring-devtools.properties:

restart.include.beetl=/beetl-2.3.2.jar
restart.include.beetlsql=/beetlsql-2.3.1.jar

在templates下加一个index.btl文件。

加入jar和配置beatlsql的这些bean,以及resources这些配置之后,springboot就能够访问到数据库类。

举个restful的栗子

初始化数据库的表

# DROP TABLE `account` IF EXISTS
CREATE TABLE `account` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `name` varchar(20) NOT NULL,
 `money` double DEFAULT NULL,
 PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
INSERT INTO `account` VALUES ('1', 'aaa', '1000');
INSERT INTO `account` VALUES ('2', 'bbb', '1000');
INSERT INTO `account` VALUES ('3', 'ccc', '1000');

bean

public class Account {
  private int id ;
  private String name ;
  private double money;

  getter...

  setter...

 } 

数据访问dao层

public interface AccountDao extends BaseMapper<Account> {

  @SqlStatement(params = "name")
  Account selectAccountByName(String name);
}

接口继承BaseMapper,就能获取单表查询的一些性质,当你需要自定义sql的时候,只需要在resouses/sql/account.md文件下书写文件:

selectAccountByName
===
*根据name获account

  select * from account where name= #name#

其中“=== ”上面是唯一标识,对应于接口的方法名,“* ”后面是注释,在下面就是自定义的sql语句,具体的见官方文档。

web层

这里省略了service层,实际开发补上。

@RestController
@RequestMapping("/account")
public class AccountController {

  @Autowired
  AccountDao accountDao;

  @RequestMapping(value = "/list",method = RequestMethod.GET)
  public List<Account> getAccounts(){
    return accountDao.all();
  }

  @RequestMapping(value = "/{id}",method = RequestMethod.GET)
  public Account getAccountById(@PathVariable("id") int id){
    return accountDao.unique(id);
  }

  @RequestMapping(value = "",method = RequestMethod.GET)
  public Account getAccountById(@RequestParam("name") String name){
    return accountDao.selectAccountByName(name);
  }

  @RequestMapping(value = "/{id}",method = RequestMethod.PUT)
  public String updateAccount(@PathVariable("id")int id , @RequestParam(value = "name",required = true)String name,
  @RequestParam(value = "money" ,required = true)double money){
    Account account=new Account();
    account.setMoney(money);
    account.setName(name);
    account.setId(id);
    int t=accountDao.updateById(account);
    if(t==1){
      return account.toString();
    }else {
      return "fail";
    }
  }

  @RequestMapping(value = "",method = RequestMethod.POST)
  public String postAccount( @RequestParam(value = "name")String name,
                 @RequestParam(value = "money" )double money) {
    Account account = new Account();
    account.setMoney(money);
    account.setName(name);
    KeyHolder t = accountDao.insertReturnKey(account);
    if (t.getInt() > 0) {
      return account.toString();
    } else {
      return "fail";
    }
  }
}

通过postman 测试,代码已全部通过。

个人使用感受,使用bealsql做了一些项目的试验,但是没有真正用于真正的生产环境,用起来非常的爽。但是springboot没有提供自动装配的直接支持,需要自己注解bean。另外使用这个orm的人不太多,有木有坑不知道,在我使用的过程中没有遇到什么问题。另外它的中文文档比较友好。

源码下载:https://github.com/forezp/SpringBootLearning

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

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