标签：previous rom BMI delattr author primary integer prim date
本例介绍控制器和jsp页面的写法，分两部分。
本文中，jsp页面，一共有3个，浏览页面，增加页面，修改页面。
控制器一共有6个。浏览getAuthors，增加页面跳转authorAdd，增加业务authorSave，修改页面跳转authorModify，修改业务authorUpdate，删除业务authorDel。
一、控制器
1，入参。
其中控制器中，需要带id传值的，有2个，一个删除业务，一个是修改页面跳转。这里两个同样需要路径参数注解。
带bean传值的，有3个，一个是增加页面跳转，一个是增加业务，一个是修改业务。
带BindingResult，error返回值的，有2个，一个是增加业务。一个是修改业务。
带Valid校验bean的，也是2个，一个是增加业务。一个是修改业务。
带路径参数注解 @PathVariable的，有2个。一个是删除业务，一个是修改页面跳转。
带请求参数注解 @RequestParam 的，有1个，浏览所有getAuthors。且该请求参数后需要跟着实参。
代码如下：
@Controller public class ZhouyiAuthorController { @Autowired private ZhouyiAuthorService zhouyiAuthorService; @RequestMapping("/getAuthors") public ModelAndView getAuhoros(@RequestParam(value="pn",defaultValue = "1")Integer pn) { PageHelper.startPage(pn, 12); ModelAndView mv = new ModelAndView("zhouyiAuthor"); List<ZhouyiAuthor> zhouyiContentAuthors = zhouyiAuthorService.getZhouyiContentAuthors(); PageInfo page = new PageInfo(zhouyiContentAuthors,7); mv.addObject("pageinfo", page); return mv; } @RequestMapping("/zhouyiAuthorDel/{id}") public ModelAndView zhouyiAuthorDel(@PathVariable("id") Integer id) { ModelAndView mv = new ModelAndView(); List<ZhouyiAuthor> zhouyiAuthorsFromContents = zhouyiAuthorService.getZhouyiAuthorsFromContents(id); if(zhouyiAuthorsFromContents.size()>0) { mv.addObject("errors", "*该作者下有子类目，不允许删除！"); mv.setViewName("forward:/getAuthors"); return mv; } int deleteZhouyiContentAuthor = zhouyiAuthorService.deleteZhouyiContentAuthor(id); if(deleteZhouyiContentAuthor!=1) { mv.addObject("errors", "*删除异常！"); mv.setViewName("forward:/getAuthors"); return mv; } mv.setViewName("redirect:/getAuthors"); return mv; } @RequestMapping("/zhouyiAuthorAdd") public ModelAndView zhouyiAuthorAdd(ZhouyiAuthor zhouyiAuthor){ ModelAndView mv = new ModelAndView("zhouyiAuthorAdd"); return mv; } @RequestMapping("/zhouyiAuthorSave") public ModelAndView zhouyiAuthorSave(@Valid ZhouyiAuthor zhouyiAuthor,BindingResult errors) { ModelAndView mv = new ModelAndView(); if(errors.getFieldErrorCount()>0) { for (FieldError err : errors.getFieldErrors()) { System.out.println("err.field:= "+err.getField()+ " | message:==="+ err.getDefaultMessage()); } mv.setViewName("zhouyiAuthorAdd"); return mv; } zhouyiAuthorService.addZhouyiContentAuthor(zhouyiAuthor); mv.setViewName("forward:/getAuthors"); return mv; } @RequestMapping("/zhouyiAuthorModify/{id}") public ModelAndView zhouyiAuthorModify(@PathVariable("id") Integer id) { ModelAndView mv = new ModelAndView("zhouyiAuthorModify"); mv.addObject("zhouyiAuthor",zhouyiAuthorService.getZhouyiContentAuthorById(id) ); return mv; } @RequestMapping("/zhouyiAuthorUpdate") public ModelAndView zhouyiAuthorUpdate(@Valid ZhouyiAuthor zhouyiAuthor,BindingResult errors) { ModelAndView mv = new ModelAndView(); if(zhouyiAuthor.getOrderId()==null) { errors.addError(new FieldError("zhouyiAuthor", "orderId", "不能为空")); } if(errors.getErrorCount()>0) { mv.setViewName("zhouyiAuthorModify"); return mv; } zhouyiAuthorService.modifyZhouyiContentAuthor(zhouyiAuthor); mv.setViewName("redirect:/getAuthors"); return mv; } }
2.jsp页面。
有3个，如果能用springmvc标签写的，就用springmvc标签写，不要用html普通标签写，因为有一些附件功能，比如path在修改页面时，若有列表可以自动检查当前值并且选中。
头如下：
<title>Yiwiki - 作者</title> <% pageContext.setAttribute("APP_PATH", request.getContextPath()); %> <script src="${APP_PATH}/static/js/jquery-1.12.4.min.js"></script> <link href="${APP_PATH}/static/bootstrap-3.3.7-dist/css/bootstrap-theme.css" rel="stylesheet"> <link href="${APP_PATH}/static/bootstrap-3.3.7-dist/css/bootstrap.css" rel="stylesheet"> <script src="${APP_PATH}/static/bootstrap-3.3.7-dist/js/bootstrap.js" ></script> </head> <body>
头文件包括如下：
<body> <jsp:include page="/header.jsp"></jsp:include> <ol class="breadcrumb"> <li><a href="#">Home</a></li> <li><a href="#">作者分类</a></li> <li class="active">修改</li> </ol> //下面为主体部分 <div class="container">
浏览页面如下：
<div class="container"> <span style="margin-left:3px;color:#ce4844;font-weight:bold">${errors }</span> <a href="${APP_PATH }/zhouyiAuthorAdd"><button type="button" class="btn btn-primary " style="margin-bottom: 8px; float: right">新增</button></a> <table class="table table-striped table-hover"> <tr> <td>ID</td> <td>排序</td> <td>作者名称</td> <td>说明</td> <td>操作</td> </tr> <c:forEach items="${pageinfo.list }" var="zhouyiAuthor"> <tr> <td>${zhouyiAuthor.id }</td> <td>${zhouyiAuthor.orderId }</td> <td>${zhouyiAuthor.name }</td> <td>${zhouyiAuthor.info }</td> <td><a href="${APP_PATH }/zhouyiAuthorModify/${zhouyiAuthor.id}"><button type="button" class="btn btn-primary btn-xs btn_edit" edit_id="${zhouyiAuthor.id }">修改</button></a> <a href="${APP_PATH }/zhouyiAuthorDel/${zhouyiAuthor.id}"><button type="button" class="btn btn-primary btn-xs" onclick="return confirm(‘确定要删除吗？‘)">删除</button></a></td> </tr> </c:forEach> </table> 共${pageinfo.total }条记录,共${pageinfo.pages }页 <nav style="float: right" aria-label="Page navigation"> <ul class="pagination"> <li><a href="${APP_PATH }/getAuthors?pn=1" aria-label="Previous"> <span aria-hidden="true">«</span> </a></li> <c:forEach items="${pageinfo.navigatepageNums }" var="nums"> <c:if test="${pageinfo.pageNum == nums }"> <li class="active"><a href="${APP_PATH }/getAuthors?pn=${nums}">${nums }</a></li> </c:if> <c:if test="${pageinfo.pageNum != nums }"> <li><a href="${APP_PATH }/getAuthors?pn=${nums}">${nums }</a></li> </c:if> </c:forEach> <li><a href="${APP_PATH }/getAuthors?pn=${pageinfo.pages}" aria-label="Next"> <span aria-hidden="true">»</span> </a></li> </ul> </nav> </div>
增加跳转页面如下：
<div class="container"> <form:form modelAttribute="zhouyiAuthor" class="form-horizontal" id="saveForm" > <div class="form-group"> <label for="name" class="col-sm-2 control-label">作者</label> <div class="col-sm-6"> <form:input type="text" path="name" class="form-control" id="name" placeholder="姓名" /><form:errors path="name"></form:errors> </div> </div> <div class="form-group"> <label for="info" class="col-sm-2 control-label">说明</label> <div class="col-sm-6"> <form:input type="text" path="info" class="form-control" id="info" placeholder="备注"/><form:errors path="info"></form:errors> </div> </div> <div class="form-group"> <label for="" class="col-sm-2 control-label"></label> <div class="col-sm-6" > <button type="submit" id="saveIndex" class="btn btn-primary" formenctype="multipart/form-data" formaction="${APP_PATH }/zhouyiAuthorSave" formmethod="post" >保存</button> </div> </div> </form:form> </div>
修改页面如下：
<div class="container"> <form:form modelAttribute="zhouyiAuthor" class="form-horizontal" id="saveForm" > <div class="form-group"> <form:hidden path="id"/> <label for="name" class="col-sm-2 control-label">作者</label> <div class="col-sm-6"> <form:input type="text" path="name" class="form-control" id="name" placeholder="姓名" /><form:errors path="name"></form:errors> </div> </div> <div class="form-group"> <label for="info" class="col-sm-2 control-label">说明</label> <div class="col-sm-6"> <form:input type="text" path="info" class="form-control" id="info" placeholder="备注"/><form:errors path="info"></form:errors> </div> </div> <div class="form-group"> <label for="orderId" class="col-sm-2 control-label">排序</label> <div class="col-sm-2"> <form:input type="text" path="orderId" class="form-control" id="orderId" placeholder="排序"/><form:errors path="orderId"></form:errors> </div> </div> <div class="form-group"> <label for="" class="col-sm-2 control-label"></label> <div class="col-sm-6" > <button type="submit" id="saveIndex" class="btn btn-primary" formenctype="multipart/form-data" formaction="${APP_PATH }/zhouyiAuthorUpdate" formmethod="post" >保存</button> </div> </div> </form:form> </div>
springmvc CRUD控制器写法和jsp页面写法 总结大全。
标签：previous rom BMI delattr author primary integer prim date
原文地址：https://www.cnblogs.com/sdgtxuyong/p/12194880.html
