Springboot + bootstrap interface version of the CRUD and upload pictures
Creating projects
Other demands configured the same as before
Pom-related import dependence
<mysql.version>5.1.44</mysql.version>
<version>${mysql.version}</version>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</dependency>
application.yml file configuration
server:
port: 80
servlet:
context-path: /
spring:
datasource:
#1.JDBC
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/mysql?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
username: root
password: 123456
druid:
#2.连接池配置
#初始化连接池的连接数量 大小，最小，最大
initial-size: 5
min-idle: 5
max-active: 20
#配置获取连接等待超时的时间
max-wait: 60000
#配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
time-between-eviction-runs-millis: 60000
# 配置一个连接在池中最小生存的时间，单位是毫秒
min-evictable-idle-time-millis: 30000
validation-query: SELECT 1 FROM DUAL
test-while-idle: true
test-on-borrow: true
test-on-return: false
# 是否缓存preparedStatement，也就是PSCache 官方建议MySQL下建议关闭 个人建议如果想用SQL防火墙 建议打开
pool-prepared-statements: true
max-pool-prepared-statement-per-connection-size: 20
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
filter:
stat:
merge-sql: true
slow-sql-millis: 5000
#3.基础监控配置
web-stat-filter:
enabled: true
url-pattern: /*
#设置不统计哪些URL
exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"
session-stat-enable: true
session-stat-max-count: 100
stat-view-servlet:
enabled: true
url-pattern: /druid/*
reset-enable: true
#设置监控页面的登录名和密码
login-username: admin
login-password: admin
allow: 127.0.0.1
jpa:
hibernate:
ddl-auto: update
show-sql: true
thymeleaf:
cache: false
# 解决图片上传大小限制问题，也可采取配置类
servlet:
multipart:
max-file-size: 20MB
max-request-size: 60MB
#显示日志
logging:
level:
com.javaxl.springboot02.mapper: debug
Springboot03Application start classes annotate
@EnableTransactionManagement
// annotation transaction management, xml configuration equivalent to the embodiment of the <tx: annotation-driven />
package com.javachz.springboot03;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.transaction.annotation.EnableTransactionManagement;
@EnableTransactionManagement
@SpringBootApplication
public class Springboot03Application {
public static void main(String[] args) {
SpringApplication.run(Springboot03Application.class, args);
}
}
Upload file mapping configuration class MyWebAppConfigurer.java
package com.javachz.springboot03.config;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
/**
* @author 52hz
* @site www.javachz.com
* @company xxx公司
* @create 2020-01-03 16:19
/**
* 资源映射路径
*/
@Configuration
public class MyWebAppConfigurer extends WebMvcConfigurationSupport {
@Override
protected void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
registry.addResourceHandler("/uploadImages/**").addResourceLocations("file:D:/images/");
super.addResourceHandlers(registry);
}
}
Background relevant code
Tools PageBean
package com.javachz.springboot03.util;
import javax.servlet.http.HttpServletRequest;
import java.util.Map;
/**
* @author 52hz
* @site www.javachz.com
* @company xxx公司
* @create 2020-01-02 22:39
* 分页工具类
*/
public class PageBean {
private int page=1;//页码
private int rows=3;//页大小
private int total=0;//总记录数
private boolean pagination = true;// 是否分页
// 保存上次查询的参数
private Map<String, String[]> paramMap;
// 保存上次查询的url
private String url;
public void setRequest(HttpServletRequest request) {
String page = request.getParameter("page");
String rows = request.getParameter("offset");
String pagination = request.getParameter("pagination");
this.setPage(page);
this.setRows(rows);
this.setPagination(pagination);
this.setUrl(request.getRequestURL().toString());
this.setParamMap(request.getParameterMap());
}
public PageBean() {
super();
}
public Map<String, String[]> getParamMap() {
return paramMap;
}
public void setParamMap(Map<String, String[]> paramMap) {
this.paramMap = paramMap;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public int getPage() {
return page;
}
public void setPage(int page) {
this.page = page;
}
public void setPage(String page) {
if(StringUtils.isNotBlank(page)) {
this.page = Integer.parseInt(page);
}
}
public int getRows() {
return rows;
}
public void setRows(String rows) {
if(StringUtils.isNotBlank(rows)) {
this.rows = Integer.parseInt(rows);
}
}
public int getTotal() {
return total;
}
public void setTotal(int total) {
this.total = total;
}
public void setTotal(String total) {
if(StringUtils.isNotBlank(total)) {
this.total = Integer.parseInt(total);
}
}
public boolean isPagination() {
return pagination;
}
public void setPagination(boolean pagination) {
this.pagination = pagination;
}
public void setPagination(String pagination) {
if(StringUtils.isNotBlank(pagination) && "false".equals(pagination)) {
this.pagination = Boolean.parseBoolean(pagination);
}
}
/**
* 最大页
* @return
*/
public int getMaxPage() {
int max = this.total/this.rows;
if(this.total % this.rows !=0) {
max ++ ;
}
return max;
}
/**
* 下一页
* @return
*/
public int getNextPage() {
int nextPage = this.page + 1;
if(nextPage > this.getMaxPage()) {
nextPage = this.getMaxPage();
}
return nextPage;
}
/**
* 上一页
* @return
*/
public int getPreviousPage() {
int previousPage = this.page -1;
if(previousPage < 1) {
previousPage = 1;
}
return previousPage;
}
/**
* 获得起始记录的下标
*
* @return
*/
public int getStartIndex() {
return (this.page - 1) * this.rows;
}
@Override
public String toString() {
return "PageBean [page=" + page + ", rows=" + rows + ", total=" + total + ", pagination=" + pagination + "]";
}
}
PageUtil
package com.javachz.springboot03.util;
import java.util.Map;
import java.util.Set;
/**
* @author 52hz
* @site www.javachz.com
* @company xxx公司
* @create 2020-01-02 22:43
*
* 基于bootstrap3生成分页代码
*/
public class PageUtil {
public static String createPageCode(PageBean pageBean) {
StringBuffer sb = new StringBuffer();
/*
* 拼接向后台提交数据的form表单
* 注意：拼接的form表单中的page参数是变化的，所以不需要保留上一次请求的值
*/
sb.append("<form id='pageBeanForm' action='"+pageBean.getUrl()+"' method='post'>");
sb.append("<input type='hidden' name='page'>");
Map<String, String[]> parameterMap = pageBean.getParamMap();
if(parameterMap != null && parameterMap.size() > 0) {
Set<Map.Entry<String, String[]>> entrySet = parameterMap.entrySet();
for (Map.Entry<String, String[]> entry : entrySet) {
if (!"page".equals(entry.getKey())) {
String[] values = entry.getValue();
for (String val : values) {
sb.append("<input type='hidden' name='" + entry.getKey() + "' value='" + val + "'>");
}
}
}
}
sb.append("</form>");
if(pageBean.getTotal()==0){
return "未查询到数据";
}else{
sb.append("<li><a href='javascript:gotoPage(1)'>首页</a></li>");
if(pageBean.getPage()>1){
sb.append("<li><a href='javascript:gotoPage("+pageBean.getPreviousPage()+")'>上一页</a></li>");
}else{
sb.append("<li class='disabled'><a href='javascript:gotoPage(1)'>上一页</a></li>");
}
for(int i=pageBean.getPage()-1;i<=pageBean.getPage()+1;i++){
if(i<1||i>pageBean.getMaxPage()){
continue;
}
if(i==pageBean.getPage()){
sb.append("<li class='active'><a href='#'>"+i+"</a></li>");
}else{
sb.append("<li><a href='javascript:gotoPage("+i+")'>"+i+"</a></li>");
}
}
if(pageBean.getPage()<pageBean.getMaxPage()){
sb.append("<li><a href='javascript:gotoPage("+pageBean.getNextPage()+")'>下一页</a></li>");
}else{
sb.append("<li class='disabled'><a href='javascript:gotoPage("+pageBean.getMaxPage()+")'>下一页</a></li>");
}
sb.append("<li><a href='javascript:gotoPage("+pageBean.getMaxPage()+")'>尾页</a></li>");
}
/*
* 给分页条添加与后台交互的js代码
*/
sb.append("<script type='text/javascript'>");
sb.append(" function gotoPage(page) {");
sb.append(" document.getElementById('pageBeanForm').page.value = page;");
sb.append(" document.getElementById('pageBeanForm').submit();");
sb.append(" }");
sb.append(" function skipPage() {");
sb.append(" var page = document.getElementById('skipPage').value;");
sb.append(" if(!page || isNaN(page) || parseInt(page)<1 || parseInt(page)>"+pageBean.getMaxPage()+"){");
sb.append(" alert('请输入1~N的数字');");
sb.append(" return;");
sb.append(" }");
sb.append(" gotoPage(page);");
sb.append(" }");
sb.append("</script>");
return sb.toString();
}
}
StringUtils
package com.javachz.springboot03.util;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
/**
* @author 52hz
* @site www.javachz.com
* @company xxx公司
* @create 2020-01-02 22:23
* 工具类
*/
public class StringUtils {
//私有的构造方法，保护此类不能在外部实例化
public StringUtils() {
}
/**
* 如果字符串等于null或去空格后等于""，则返回true，否则返回false
*
* @param s
* @return
*/
public static boolean isBlank(String s){
boolean b=false;
if(null==s||s.trim().equals("")){
b=true;
}
return b;
}
/**
* 如果字符串不等于null或去空格后不等于""，则返回true，否则返回false
*
* @param s
* @return
*/
public static boolean isNotBlank(String s){
return !isBlank(s);
}
/**
* set集合转string
* @param hasPerms
* @return
*/
public static String SetToString(Set hasPerms){
return Arrays.toString(hasPerms.toArray()).replaceAll("","").replace("[","").replace("]","");
}
/**
* 转换成模糊查询所需参数
* @param before
* @return
*/
public static String toLikeStr(String before){
return isBlank(before)?null:"%"+before+"%";
}
/**
* 将图片的服务器访问地址转换为真实存放地址
* @param imgpath 图片访问地址（http://localhost:8080/uploadImage/2019/01/26/20190126000000.jpg）
* @param serverDir uploadImage
* @param realDir E:/temp/
* @return
*/
public static String serverPath2realPath(String imgpath,String serverDir,String realDir){
imgpath=imgpath.substring(imgpath.indexOf(serverDir));
return imgpath.replace(serverDir,realDir);
}
/**
* 过滤掉集合里的空格
* @param list
* @return
*/
public static List<String> filterWhite(List<String> list){
List<String> resultList=new ArrayList<String>();
for (String s : list) {
if (isNotBlank(s)){
resultList.add(s);
}
}
return resultList;
}
/**
* 从html中提取纯文本
* @param strHtml
* @return
*/
public static String html2Text(String strHtml){
String txtcontent = strHtml.replaceAll("</?[^>]+>", ""); //剔出<html>的标签
txtcontent = txtcontent.replaceAll("<a>\\s*|\t|\r|\n</a>", "");//去除字符串中的空格,回车,换行符,制表符
return txtcontent;
}
public static void main(String[] args) {
}
}
Entity class entity
package com.javachz.springboot03.entity;
import lombok.Data;
import lombok.ToString;
import javax.persistence.*;
/**
* @author 52hz
* @site www.javachz.com
* @company xxx公司
* @create 2020-01-02 22:46
*/
@Entity
@Data
@ToString
@Table(name = "t_springboot_teacher")
public class Teacher {
@Id
@GeneratedValue
private Integer tid;
@Column(length = 16)
private String tname;
@Column(length = 4)
private String sex;
@Column(length = 100)
private String description;
@Column(length = 200)
private String imagePath;
public Integer getTid() {
return tid;
}
public void setTid(Integer tid) {
this.tid = tid;
}
public String getTname() {
return tname;
}
public void setTname(String tname) {
this.tname = tname;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getImagePath() {
return imagePath;
}
public void setImagePath(String imagePath) {
this.imagePath = imagePath;
}
}
After starting the implementation of
dao layer
package com.javachz.springboot03.dao;
import com.javachz.springboot03.entity.Teacher;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
/**
* @author 52hz
* @site www.javachz.com
* @company xxx公司
* @create 2020-01-03 14:32
*/
public interface TeacherDao extends JpaRepository<Teacher,Integer>, JpaSpecificationExecutor<Teacher> {
}
service layer
package com.javachz.springboot03.service;
import com.javachz.springboot03.entity.Teacher;
import com.javachz.springboot03.util.PageBean;
import org.springframework.data.domain.Page;
/**
* @author 52hz
* @site www.javachz.com
* @company xxx公司
* @create 2020-01-03 14:35
*/
public interface TeacherService {
public Teacher save(Teacher teacher);
public void deleteById(Integer id);
public Teacher findById(Integer id);
public Page<Teacher> listPager(Teacher teacher, PageBean pageBean);
}
package com.javachz.springboot03.service.imp;
import com.javachz.springboot03.dao.TeacherDao;
import com.javachz.springboot03.entity.Teacher;
import com.javachz.springboot03.service.TeacherService;
import com.javachz.springboot03.util.PageBean;
import com.javachz.springboot03.util.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
/**
* @author 52hz
* @site www.javachz.com
* @company xxx公司
* @create 2020-01-03 14:36
*/
@Service
public class TeacherServiceImpl implements TeacherService {
@Autowired
private TeacherDao teacherDao;
@Override
public Teacher save(Teacher teacher) {
return teacherDao.save(teacher);
}
@Override
public void deleteById(Integer id) {
teacherDao.deleteById(id);
}
@Override
public Teacher findById(Integer id) {
return teacherDao.findById(id).get();
}
@Override
public Page<Teacher> listPager(Teacher teacher, PageBean pageBean) {
//jpa的pageable分页是从0页码开始
Pageable pageable= PageRequest.of(pageBean.getPage()-1,pageBean.getRows());
return teacherDao.findAll(new Specification<Teacher>() {
@Override
public Predicate toPredicate(Root<Teacher> root, CriteriaQuery<?> criteriaQuery, CriteriaBuilder criteriaBuilder) {
Predicate predicate=criteriaBuilder.conjunction();
if (teacher!=null){
if (StringUtils.isNotBlank(teacher.getTname())){
predicate.getExpressions().add(criteriaBuilder.like(root.get("tname"),"%"+teacher.getTname()+"%"));
}
}
return predicate;
}
},pageable);
}
}
controler layer
package com.javachz.springboot03.controller;
import com.javachz.springboot03.entity.Teacher;
import com.javachz.springboot03.service.TeacherService;
import com.javachz.springboot03.util.PageBean;
import com.javachz.springboot03.util.PageUtil;
import com.javachz.springboot03.util.StringUtils;
import org.apache.commons.io.FileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
/**
* @author 52hz
* @site www.javachz.com
* @company xxx公司
* @create 2020-01-03 14:44
*/
@Controller
@RequestMapping("/teacher")
public class TeacherController {
@Autowired
private TeacherService teacherService;
@RequestMapping("/listPager")
public ModelAndView list(Teacher teacher, HttpServletRequest request){
PageBean pageBean = new PageBean();
pageBean.setRequest(request);
ModelAndView modelAndView = new ModelAndView();
Page<Teacher> teachers = teacherService.listPager(teacher, pageBean);
modelAndView.addObject("teachers",teachers.getContent());
pageBean.setTotal(teachers.getTotalElements()+"");
modelAndView.addObject("pageCode", PageUtil.createPageCode(pageBean)/*.replaceAll("<","<").replaceAll(">:",">")*/);
modelAndView.setViewName("list");
return modelAndView;
}
@RequestMapping("/toEdit")
public ModelAndView toEdit(Teacher teacher){
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("edit");
modelAndView.addObject("sexArr",new String[]{"男","女"});
if(!(teacher.getTid() == null || "".equals(teacher.getTid()))) {
Teacher t = teacherService.findById(teacher.getTid());
modelAndView.addObject("teacher", t);
}
return modelAndView;
}
@RequestMapping("/add")
public String add(Teacher teacher, MultipartFile image){
try {
String diskPath = "D://images/"+image.getOriginalFilename();
String serverPath = "/uploadImages/"+image.getOriginalFilename();
if(StringUtils.isNotBlank(image.getOriginalFilename())){
FileUtils.copyInputStreamToFile(image.getInputStream(),new File(diskPath));
teacher.setImagePath(serverPath);
}
teacherService.save(teacher);
} catch (IOException e) {
e.printStackTrace();
}
return "redirect:/teacher/listPager";
}
@RequestMapping("/edit")
public String edit(Teacher teacher, MultipartFile image){
String diskPath = "D://images/"+image.getOriginalFilename();
String serverPath = "/uploadImages/"+image.getOriginalFilename();
if(StringUtils.isNotBlank(image.getOriginalFilename())){
try {
FileUtils.copyInputStreamToFile(image.getInputStream(),new File(diskPath));
teacher.setImagePath(serverPath);
} catch (IOException e) {
e.printStackTrace();
}
}
teacherService.save(teacher);
return "redirect:/teacher/listPager";
}
@RequestMapping("/del/{bid}")
public String del(@PathVariable(value = "bid") Integer bid){
teacherService.deleteById(bid);
return "redirect:/teacher/listPager";
}
}
Page Layers
list.html
<!DOCTYPE html>
<html lang="en">
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>书籍列表</title>
<script type="text/javascript" th:src="@{/static/js/xxx.js}"></script>
<link rel="stylesheet" th:href="@{/static/js/bootstrap3/css/bootstrap.min.css}">
<link rel="stylesheet" th:href="@{/static/js/bootstrap3/css/bootstrap-theme.min.css}">
<script type="text/javascript" th:src="@{/static/js/bootstrap3/js/jquery-1.11.2.min.js}"></script>
<script type="text/javascript" th:src="@{/static/js/bootstrap3/js/bootstrap.min.js}"></script>
</head>
<body>
<form th:action="@{/teacher/listPager}" method="post">
书籍名称： <input type="text" name="tname" />
<input type="submit" value="提交"/>
</form>
<a th:href="@{/teacher/toEdit}">新增</a>
<table border="1px" width="600px">
<thead>
<tr>
<td>ID</td>
<td>头像</td>
<td>姓名</td>
<td>性别</td>
<td>简介</td>
<td>操作</td>
</tr>
</thead>
<tbody>
<tr th:each="teacher : ${teachers}">
<td th:text="${teacher.tid}"></td>
<td><img style="width: 60px;height: 60px;" id="imgshow" th:src="${teacher.imagePath}" th:alt="${teacher.tname}"/></td>
<!--<td th:text="${teacher.imagePath}"></td>-->
<td th:text="${teacher.tname}"></td>
<td th:text="${teacher.sex}"></td>
<td th:text="${teacher.description}"></td>
<td>
<a th:href="@{'/teacher/del/'+${teacher.tid}}">删除</a>
<a th:href="@{'/teacher/toEdit?tid='+${teacher.tid}}">修改</a>
</td>
</tr>
</tbody>
</table>
<nav>
<ul class="pagination pagination-sm" th:utext="${pageCode}">
</ul>
<!--<ul class="pagination pagination-sm">-->
<!--<form id='pageBeanForm' action='http://localhost:8080/springboot/teacher/listPager' method='post'><input type='hidden' name='page'></form>-->
<!--<li><a href='javascript:gotoPage(1)'>首页</a></li>-->
<!--<li class='disabled'><a href='javascript:gotoPage(1)'>上一页</a></li>-->
<!--<li class='active'><a href='#'>1</a></li>-->
<!--<li><a href='javascript:gotoPage(2)'>2</a></li>-->
<!--<li><a href='javascript:gotoPage(2)'>下一页</a></li>-->
<!--<li><a href='javascript:gotoPage(4)'>尾页</a></li>-->
<!--<script type='text/javascript'> function gotoPage(page) { document.getElementById('pageBeanForm').page.value = page; document.getElementById('pageBeanForm').submit(); } function skipPage() { var page = document.getElementById('skipPage').value; if(!page || isNaN(page) || parseInt(page)<1 || parseInt(page)>4){ alert('请输入1~N的数字'); return; } gotoPage(page); }</script>-->
<!--</ul>-->
</nav>
</body>
</html>
edit.html
<!DOCTYPE html>
<html lang="en">
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>用户编辑界面</title>
<script type="text/javascript">
function preShow() {
}
</script>
</head>
<body>
<form th:action="@{${teacher.tid} ? '/teacher/edit' : '/teacher/add'}" method="post" enctype="multipart/form-data">
<input type="hidden" name="tid" th:value="${teacher.tid}" />
<input type="hidden" name="imagePath" th:value="${teacher.imagePath}" />
<img id="imgshow" src="" alt=""/>
<input type="file" name="image" onchange="preShow();"></br>
教员名称： <input type="text" name="tname" th:value="${teacher.tname}" /></br>
教员描述： <input type="text" name="description" th:value="${teacher.description}" /></br>
单选回显
<input type="radio" name="sex"
th:each ="s:${sexArr}"
th:value="${s}"
th:text ="${s}"
th:attr ="checked=${s == teacher.sex}">
<input type="submit" value="提交"/>
</form>
</body>
</html>
Case Results Screenshot
Tips:
Thymeleaf radio echo, echo multiple choice, echoing the drop-down option is selected by default the first
//默认选中第一个
<input type ="radio" name="repaymentType"
th:each ="repaymentType,repaymentState:${repaymentTypeList}"
th:value="${repaymentType.dictName}"
th:text ="${repaymentType.dictName}"
th:attr ="checked=${repaymentState.index==0?true:false}">
//单选回显
<input type="radio" name="repaymentType"
th:each ="repaymentType:${repaymentTypeList}"
th:value="${repaymentType.dictName}"
th:text ="${repaymentType.dictName}"
th:attr ="checked=${financeProductDO.repaymentType == repaymentType.dictName?true:false}">
//多选回显
<input type ="checkbox" name="companyRole"
th:each ="role : ${companyRoleList}"
th:value="${role.dictName}"
th:text ="${role.dictName}"
th:attr ="checked=${companyInformation.companyRole.contains(role.dictName)?true:false}">
//下拉选回显默认选中 前台接收到参数：user对象和businessList集合
<option th:selected="${user.businessId eq busi.businessId}"
th:each="busi:${businessList}"
th:value="${busi.businessId}"
th:text="${busi.businessName}" >
</option>
