1、Thymeleaf 目标
迭代语法：th:each; iteration status条件语法：th:if; th:unlessswitch语法：th:switch; th:case; *
2、公共模拟SpringBoot 后台接口
// 分页查询@RequestMapping("/allColumnValidates")public String getPage(Model model, @RequestParam(defaultValue = "1") int pageNo,@RequestParam(defaultValue = "10") int pageSize) {// 注意:分页代码PageHelper.startPage(pageNo,pageSize);只对其后的第一个查询有效。PageHelper.startPage(pageNo, pageSize);List<ColumnValidate> list = service.selectAll();PageInfo pageInfo = new PageInfo(list);model.addAttribute("pageInfo", pageInfo);// 获得当前页model.addAttribute("pageNum", pageInfo.getPageNum());// 获得一页显示的条数model.addAttribute("pageSize", pageInfo.getPageSize());// 是否是第一页model.addAttribute("isFirstPage", pageInfo.isIsFirstPage());// 获得总页数model.addAttribute("totalPages", pageInfo.getPages());// 是否是最后一页model.addAttribute("isLastPage", pageInfo.isIsLastPage());return "validate/validate";}// 跳转至新增页面@RequestMapping(value = "/insertPage", method = { RequestMethod.GET })public String insertPage() {return "validate/add";}// 插入@RequestMapping(value = "/insert", method = { RequestMethod.POST })public String insert(ColumnValidate entity) {IdGenerator idWorker = new IdGenerator(0,0);String sid = String.valueOf(idWorker.nextId());entity.setSid(sid);// 默认始化值entity.setCreateDt(new Date());entity.setDeleteFlag(GlobalConstant.DELETE_FLAG_NO);entity.setState(GlobalConstant.ENABLE);entity.setVersion(GlobalConstant.DEFAULT_VALUE);service.insert(entity);// 字段验证规则新增成功，调整至字段验证首页return "redirect:/api/column-validate/allColumnValidates";} package com.zzg.entity;import java.util.Date;import org.springframework.format.annotation.DateTimeFormat;import com.zzg.common.core.model.BaseEntity;public class ColumnValidate extends BaseEntity {private String sid;private String createBy;private Date createDt;private String updateBy;private Date updateDt;private Integer version;private String validateName;private String validateContent;private String state;private String deleteFlag;private static final long serialVersionUID = 1L;public String getSid() {return sid;}public void setSid(String sid) {this.sid = sid == null ? null : sid.trim();}public String getCreateBy() {return createBy;}public void setCreateBy(String createBy) {this.createBy = createBy == null ? null : createBy.trim();}@DateTimeFormat(pattern = "dd-MMM-YYYY")public Date getCreateDt() {return createDt;}public void setCreateDt(Date createDt) {this.createDt = createDt;}@DateTimeFormat(pattern = "dd-MMM-YYYY")public String getUpdateBy() {return updateBy;}public void setUpdateBy(String updateBy) {this.updateBy = updateBy == null ? null : updateBy.trim();}public Date getUpdateDt() {return updateDt;}public void setUpdateDt(Date updateDt) {this.updateDt = updateDt;}public Integer getVersion() {return version;}public void setVersion(Integer version) {this.version = version;}public String getValidateName() {return validateName;}public void setValidateName(String validateName) {this.validateName = validateName;}public String getValidateContent() {return validateContent;}public void setValidateContent(String validateContent) {this.validateContent = validateContent;}public String getState() {return state;}public void setState(String state) {this.state = state == null ? null : state.trim();}public String getDeleteFlag() {return deleteFlag;}public void setDeleteFlag(String deleteFlag) {this.deleteFlag = deleteFlag == null ? null : deleteFlag.trim();}@Overridepublic String toString() {StringBuilder sb = new StringBuilder();sb.append(getClass().getSimpleName());sb.append(" [");sb.append("Hash = ").append(hashCode());sb.append(", sid=").append(sid);sb.append(", createBy=").append(createBy);sb.append(", createDt=").append(createDt);sb.append(", updateBy=").append(updateBy);sb.append(", updateDt=").append(updateDt);sb.append(", version=").append(version);sb.append(", validateName=").append(validateName);sb.append(", validateContent=").append(validateContent);sb.append(", state=").append(state);sb.append(", deleteFlag=").append(deleteFlag);sb.append("]");return sb.toString();}} 3、Thymeleaf 迭代语法：
<!--Thymeleaf迭代语句each --><tr th:each="obj : ${pageInfo.list}"><td th:text="${obj.validateName}"></td><td th:text="${obj.validateContent}"></td><td th:text="${obj.sid}"></td><td th:text="${obj.createBy}"></td><td th:text="${#dates.format(obj.createDt,'yyyy-MM-dd')}"></td><td th:text="${obj.updateBy}"></td><td th:text="${#dates.format(obj.updateDt,'yyyy-MM-dd')}"></td><!--Thymeleaf 判断语句:if 和 switch --><td th:if="${obj.state} == 1" th:text="启用"></td><td th:if="${obj.state} == 2" th:text="禁用"></td><td th:if="${obj.deleteFlag} == 1" th:text="未删除"></td><td th:if="${obj.deleteFlag} == 2" th:text="已删除"></td><td><a th:rel="external nofollow" rel="external nofollow" href="@{/api/column-validate/insertPage}" class="btn btn-info btn-sm">修改</a><a th:rel="external nofollow" rel="external nofollow" href="@{/api/column-validate/insertPage}" class="btn btn-info btn-sm">删除</a></td></tr> Thymeleaf 判断语法：
<!--Thymeleaf 判断语句:if 和 switch --><td th:if="${obj.state} == 1" th:text="启用"></td><td th:if="${obj.state} == 2" th:text="禁用"></td><td th:if="${obj.deleteFlag} == 1" th:text="未删除"></td><td th:if="${obj.deleteFlag} == 2" th:text="已删除"></td> Thymeleaf switch语法：
<!-- th:switch / th:case --><div th:switch="${user.name}"> <p th:case="'admin'">User is an administrator</p> <!-- *: case的默认的选项 --> <p th:case="*">User is some other thing</p></div>