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;@Controllerpublic class PreregController {@ResourcePreregMapper 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;@Mapperpublic 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;}@Overridepublic 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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