spring boot 项目中使用thymeleaf模板的案例分析
准备
MySql数据库,表Prereg,IDEA
数据库中的表如下所示:
IDEA目录结构如下:
添加thymeleaf依赖:
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency>
开始添加代码:
在controller包添加类“PreregController”
package com.example.demo.controller; import com.example.demo.mapper.PreregMapper; import com.example.demo.pojo.Prereg; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import javax.annotation.Resource; import java.util.List; @Controller public class PreregController { @Resource PreregMapper preregMapper; @RequestMapping("/listPrereg") public String listPrereg(Model model) { List<Prereg> preregs=preregMapper.findAll(); model.addAttribute("preregs",preregs); return "listPrereg"; } }
在Mapper包下添加映射interface:“PreregMapper”
package com.example.demo.mapper; import com.example.demo.pojo.Prereg; import org.apache.ibatis.annotations.Mapper; import org.apache.ibatis.annotations.Select; import org.springframework.boot.autoconfigure.data.jpa.JpaRepositoriesAutoConfiguration; import java.util.List; @Mapper public interface PreregMapper { @Select("SELECT * FROM Prereg") List<Prereg> findAll(); }
在pojo包下添加类Prereg:
package com.example.demo.pojo; import java.util.Date; public class Prereg { private String StuId; private String StuName; private String Trans; private int IsCompany; private int PeopleCount; private Date ArrTime; public String getStuId() { return StuId; } public void setStuId(String stuId) { StuId = stuId; } public String getStuName() { return StuName; } public void setStuName(String stuName) { StuName = stuName; } public String getTrans() { return Trans; } public void setTrans(String trans) { Trans = trans; } public int getIsCompany() { return IsCompany; } public void setIsCompany(int isCompany) { IsCompany = isCompany; } public int getPeopleCount() { return PeopleCount; } public void setPeopleCount(int peopleCount) { PeopleCount = peopleCount; } public Date getArrTime() { return ArrTime; } public void setArrTime(Date arrTime) { ArrTime = arrTime; } @Override public String toString() { return "Prereg{" + "StuId='" + StuId + '\'' + ", StuName='" + StuName + '\'' + ", Trans='" + Trans + '\'' + ", IsCompany=" + IsCompany + ", PeopleCount=" + PeopleCount + ", ArrTime=" + ArrTime + '}'; } }
注:小技巧:定义好变量后,Alt+insert弹出“Generate”,选择“Getter and Setter”,再选择toString()即可完成。
最后是写HTML页面:
<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8"> <title>springboot-thymeleaf demo</title> </head> <body> <table border="1" width="1000"> <thead> <tr> <td>学生学号</td> <td>学生姓名</td> <td>到达时间</td> <td>家人陪伴</td> <td>陪伴数量</td> <td>交通工具</td> </tr> </thead> <tr th:each="item: ${preregs}"> <td th:text="${item.stuId}"></td> <td th:text="${item.stuName}"></td> <td th:text="${item.arrTime}"></td> <td th:text="${item.isCompany}"></td> <td th:text="${item.peopleCount}"></td> <td th:text="${item.trans}"></td> </tr> </table> </body> </html>
效果图如下:
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