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：
org.springframework.boot spring-boot-starter-thymeleaf
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 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 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：
springboot-thymeleaf demo
| 学生学号 | 学生姓名 | 到达时间 | 家人陪伴 | 陪伴数量 | 交通工具 |
效果图如下：
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