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:
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<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
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开始添加代码:
在controller包添加类“PreregController”
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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" ;
}
}
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在Mapper包下添加映射interface:“PreregMapper”
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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();
}
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在pojo包下添加类Prereg:
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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 +
'}' ;
}
}
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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:
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<!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 >
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效果图如下:
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原文链接:https://blog.csdn.net/weixin_43581646/article/details/108453539