Spring Boot+MyBatis+Thymeleaf整合

1、先建立数据库表,建表语句如下:

DROP TABLE IF EXISTS `t_letou`;
CREATE TABLE `t_letou` (
  `le_qihao` varchar(10) NOT NULL COMMENT '期号',
  `hong_one` varchar(10) NOT NULL COMMENT '红球1',
  `hong_two` varchar(10) NOT NULL COMMENT '红球2',
  `hong_three` varchar(10) NOT NULL COMMENT '红球3',
  `hong_four` varchar(10) NOT NULL COMMENT '红球4',
  `hong_five` varchar(10) NOT NULL COMMENT '红球5',
  `lan_one` varchar(10) NOT NULL COMMENT '蓝球1',
  `lan_two` varchar(10) NOT NULL COMMENT '蓝球2',
  PRIMARY KEY (`le_qihao`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;


DROP TABLE IF EXISTS `t_seqiu`;
CREATE TABLE `t_seqiu` (
  `se_qihao` varchar(10) NOT NULL COMMENT '期号',
  `hong_one` varchar(10) NOT NULL COMMENT '红球1',
  `hong_two` varchar(10) NOT NULL COMMENT '红球2',
  `hong_three` varchar(10) NOT NULL COMMENT '红球3',
  `hong_four` varchar(10) NOT NULL COMMENT '红球4',
  `hong_five` varchar(10) NOT NULL COMMENT '红球5',
  `hong_six` varchar(10) NOT NULL COMMENT '红球6',
  `lan_one` varchar(10) NOT NULL COMMENT '蓝球1',
  PRIMARY KEY (`se_qihao`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

2、引入依赖


        
            org.springframework.boot
            spring-boot-starter
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
        
            org.springframework.boot
            spring-boot-starter-web
        
        
        
            org.mybatis.spring.boot
            mybatis-spring-boot-starter
            1.3.2
        
        
        
            mysql
            mysql-connector-java
            runtime
           
        
        
            com.github.pagehelper
            pagehelper-spring-boot-starter
            1.2.5
        
        
        
            com.alibaba
            druid-spring-boot-starter
            1.1.9
           
        
        
            org.springframework.boot
            spring-boot-starter-thymeleaf
        

    

3、利用MyBatis生成器自动生成Entity+Dao+Mapping
操作方法:https://www.jianshu.com/p/cc2cc3e08b3f
4、生成的文件放入相应位置,结构图如下:

Spring Boot+MyBatis+Thymeleaf整合_第1张图片
示意.png

5、配置Properties,代码如下:

#配置端口号以及拦截策略
server.port=8088
server.servlet.path=*.do
#开始配置mysql连接驱动以及数据库连接池参数
spring.datasource.name=mysql_test
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.druid.filters=stat
spring.datasource.druid.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.druid.url=jdbc:mysql://localhost:3306/qiuqiu_db?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true
spring.datasource.druid.username=root
spring.datasource.druid.password=root
#这里可以不用配置,有默认参数,根据自己需求
spring.datasource.druid.initial-size=1
spring.datasource.druid.min-idle=1
spring.datasource.druid.max-active=20
spring.datasource.druid.max-wait=6000
spring.datasource.druid.time-between-eviction-runs-millis=60000
spring.datasource.druid.min-evictable-idle-time-millis=300000
spring.datasource.druid.validation-query=SELECT 'x'
spring.datasource.druid.test-while-idle=true
spring.datasource.druid.test-on-borrow=false
spring.datasource.druid.test-on-return=false
spring.datasource.druid.pool-prepared-statements=false
spring.datasource.druid.max-pool-prepared-statement-per-connection-size=20
#开始配置mybatis
mybatis.mapper-locations=classpath:mapper/*.xml
mybatis.type-aliases-package=com.guxf.demo.domain
#配置thymeleaf缓存开发期间先关闭,否则影响测试
spring.thymeleaf.cache=false
spring.thymeleaf.prefix=classpath:/templates/html
spring.thymeleaf.suffix=.html
spring.thymeleaf.mode=HTML5
spring.thymeleaf.encoding=UTF-8

6、修改生成的dao,不需要的注释,同时加入@Mapper注解

package com.guxf.demo.dao;

import java.util.List;

import org.apache.ibatis.annotations.Mapper;

import com.guxf.demo.domain.LeTou;
@Mapper
public interface LeTouMapper {

    int insert(LeTou record);

//    int insertSelective(LeTou record);

    LeTou selectByQiHao(String leQihao);
    
    List selectLeTouAll();

    int updateByQiHao(LeTou record);
}

7、进行单元测试,检测连接数据库是否成功

package com.guxf.demo.test;

import java.util.List;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.guxf.demo.DemoApplication;
import com.guxf.demo.dao.LeTouMapper;
import com.guxf.demo.domain.LeTou;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = DemoApplication.class)
public class LeTouTest {

    @Autowired
    private LeTouMapper leTouDao;

//    @Test
//    public void testInsert() {
//        LeTou letou = new LeTou();
//        letou.setLeQihao("18122");
//        letou.setHongOne("04");
//        letou.setHongTwo("11");
//        letou.setHongThree("13");
//        letou.setHongFour("17");
//        letou.setHongFive("34");
//        letou.setLanOne("05");
//        letou.setLanTwo("12");
//        leTouDao.insert(letou);
//        System.out.println("插入成功!");
//    }
    
//    @Test
//    public void TestLeTouByQiHao( ){
//       LeTou letou = leTouDao.selectByQiHao("18122");
//       System.out.println(letou.toString());
//    }
    
    @Test
    public void TestLeTouAll( ){
         List letou = leTouDao.selectLeTouAll();
         System.out.println(letou.toString());
    }
    
//    @Test
//    public void TestUpdateLeTouByQiHao( ){
//      LeTou letou = leTouDao.selectByQiHao("18122");
//      letou.setHongOne("08");
//      letou.setHongTwo("09");
//      letou.setHongThree("21");
//      letou.setHongFour("30");
//      letou.setHongFive("31");
//      letou.setLanOne("05");
//      letou.setLanTwo("12");
//      leTouDao.updateByQiHao(letou);
//      System.out.println("更新成功!");
//    }    
}

8、连接数据库没有问题,接下来就写一个简单的HTML文件,引入Thymeleaf



………………
略……
………………

        

乐透走势以及预测

期号 红一 红二 红三 红四 红五 蓝一 蓝二 预测 红一 红二 红三 红四 红五 红六 红七 蓝一 蓝二 蓝三

9、写Controller,代码如下:

@Controller
public class LeTouController {
    @Autowired
    private LeTouMapper leTouDao;
    @Autowired
    private LeTouYuMapper leTouYuDao;

    @GetMapping("/leTou.do")
    public String findAll(Model model ){
        List leTouList = leTouDao.selectLeTouAll();
        List leTouYuCeList = leTouYuDao.selectYuCeAll();
        System.err.println("打桩-----"+leTouList.toString());
        System.err.println("打桩-----"+leTouYuCeList.toString());
        model.addAttribute("leTouAll", leTouList);
        model.addAttribute("leTouYuCe", leTouYuCeList);

        return "leTouShow";
     }  
}

10、启动Application,输入访问地址:http://localhost:8088/leTou.do

结果展示.png

刚开始做的时候,其实是访问不到静态HTML的,后来查阅资料,Controller中, @RequestMapping改成@GetMapping即可

Thymeleaf语法参考:https://www.cnblogs.com/itdragon/archive/2018/04/13/8724291.html

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