ssm上傳圖片javascript
添加客戶時上傳圖片和客戶修改信息是上傳圖片。html
首先,數據庫建立pic字段,類型爲varchar,經過逆向工程從新生成mapper接口和xml文件。java
其次,service層注入mapper接口,調用mapper接口中的添加和更新方法。web
而後,controller層注入service接口,用MultipartFile接受jsp傳入的圖片,通過處理寫入客戶po類中,調用service的方法更新和添加方法。spring
最後,編寫jsp界面,經過js將要上傳的圖片顯示添加頁面或更改頁面。Form表單配置提交多部件的屬性enctype="multipart/form-data"。數據庫
在頁面form中提交enctype="multipart/form-data"的數據時,須要springmvc對multipart類型的數據進行解析,在springmvc.xml中配置multipart類型解析器mybatis
<!-- 文件上傳 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 設置上傳文件的最大尺寸爲5MB --> <property name="maxUploadSize"> <value>5242880</value> </property> </bean>
逆向工程參考http://how2j.cn/k/mybatis/mybatis-generator/1376.htmlmvc
dao層運用逆向工程生成mapper接口中的方法和自定義的接口的方法app
參考這篇文章的 https://www.cnblogs.com/peter-hao/p/ssm_custom.htmldom
的dao層
參考這篇文章的https://www.cnblogs.com/peter-hao/p/ssm_custom.html 中的service層
參考https://www.cnblogs.com/peter-hao/p/ssm_custom.html 中的controller層,
@RequestMapping("/addCustomSubmit") public String addCustomSubmit(HhCustom hhCustom, MultipartFile custom_pic) throws Exception { // 上傳圖片 // 原始名稱 String originalFilename = custom_pic.getOriginalFilename(); if (custom_pic != null && originalFilename != null && originalFilename.length() > 0) { // 存儲圖片的物理路徑 String pic_path = "C:\\Users\\Peter.Hao\\Desktop\\ssm_doc\\image\\"; // 新的圖片名稱 String newFileName = UUID.randomUUID() + originalFilename.substring(originalFilename.lastIndexOf(".")); // 新的圖片(物理路徑+圖片名) File newFile = new File(pic_path + newFileName); // 將內存中的數據寫到磁盤 custom_pic.transferTo(newFile); // 將圖片加入到HhCustom中 hhCustom.setPic(newFileName); } // 調用service更新客戶信息 customService.addCustom(hhCustom); // 重定向 return "redirect:findAllCustom.action"; }
// 更新客戶信息submit @RequestMapping("/updateCustomSubmit") public String updateCustomSubmit(Integer id, HhCustom hhCustom, MultipartFile custom_pic) throws Exception { // 上傳圖片 // 原始名稱 String originalFilename = custom_pic.getOriginalFilename(); if (custom_pic != null && originalFilename != null && originalFilename.length() > 0) { // 存儲圖片的物理路徑 String pic_path = "C:\\Users\\Peter.Hao\\Desktop\\ssm_doc\\image\\"; // 新的圖片名稱 String newFileName = UUID.randomUUID() + originalFilename.substring(originalFilename.lastIndexOf(".")); // 新的圖片(物理路徑+圖片名) File newFile = new File(pic_path + newFileName); // 將內存中的數據寫到磁盤 custom_pic.transferTo(newFile); // 將圖片加入到HhCustom中 hhCustom.setPic(newFileName); } // 調用service更新客戶信息 customService.updateCustom(id, hhCustom); return "redirect:findAllCustom.action"; }
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <script type="text/javascript"> function addCustom(){ document.customForm.action="${pageContext.request.contextPath}/addCustom.action"; document.customForm.submit(); } </script> <title>客戶列表</title> </head> <body> <form name="customForm" action="${pageContext.request.contextPath}/findAllCustom.action" method="post"> 查詢條件: <table width="100%" border=1> <tr> <td>客戶名稱:<input name="hhCustom.name" /> </td> <td>客戶類型: <select name="hhCustom.category"> <option selected="selected"></option> <c:forEach items="${customTypes}" var="customType"> <option value="${customType.value }">${customType.value}</option> </c:forEach> </select> </td> <td><button type="submit" value="查詢" >查詢</button></td> <td><input type="button" value="添加客戶" onclick="addCustom()"/></td> </tr> </table> 客戶列表: <table width="100%" border=1> <tr> <!-- <th>選擇</th> --> <th>客戶名稱</th> <th>客戶郵箱</th> <th>客戶電話</th> <th>客戶類型</th> <th>客戶頭像</th> <th>操做</th> </tr> <c:forEach items="${customlist}" var="custom"> <tr> <%-- <td><input type="checkbox" name="custom_id" value="${custom.id}" /></td> --%> <td>${custom.name }</td> <td>${custom.mail }</td> <td>${custom.phoneNumber }</td> <td>${custom.category }</td> <td align="center"><img src="/pic/${custom.pic }" width="100px" height="100px"/></td> <%--<td><fmt:formatDate value="${custom.birthday }" pattern="yyyy-MM-dd HH:mm:ss"/></td>--%> <td><a href="${pageContext.request.contextPath }/updateCustom.action?id=${custom.id }">修改</a> <a href="${pageContext.request.contextPath }/deleteCustom.action?id=${custom.id }">刪除</a> </td> </tr> </c:forEach> </table> </form> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <script type="text/javascript"> function showImg(thisimg) { var file = thisimg.files[0]; if(window.FileReader) { var fr = new FileReader(); var showimg = document.getElementById('showimg'); fr.onloadend = function(e) { showimg.src = e.target.result; }; fr.readAsDataURL(file); showimg.style.display = 'block'; } } </script> <title>添加客戶</title> </head> <body> <form id="customForm" action="${pageContext.request.contextPath}/addCustomSubmit.action" method="post" enctype="multipart/form-data"> 添加客戶信息: <table width="100%" border=1> <tr> <td>客戶名稱</td> <td><input type="text" name="name" /></td> </tr> <tr> <td>客戶郵箱</td> <td><input type="text" name="mail" /></td> </tr> <tr> <td>客戶電話號碼</td> <td><input type="text" name="phoneNumber" /></td> </tr> <tr> <td>客戶類型</td> <td><select name="category"> <c:forEach items="${customTypes}" var="customType"> <%-- <option value="${customType.key }">${customType.value}</option> --%> <option value="${customType.value }">${customType.value}</option> </c:forEach> </select></td> </tr> <tr> <td>客戶頭像</td> <td><img id="showimg" src="" style="display:none;" /> <input type="file" name="custom_pic" onchange="showImg(this)"/> </td> </tr> </table> <input type="submit" value="提交"> <input type="reset" value="重置"> </form> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <script type="text/javascript"> function showImg(thisimg) { document.getElementById("img_old").style.display="none"; var file = thisimg.files[0]; if(window.FileReader) { var fr = new FileReader(); var showimg = document.getElementById('showimg'); fr.onloadend = function(e) { showimg.src = e.target.result; }; fr.readAsDataURL(file); showimg.style.display = 'block'; } } </script> <title>修改客戶信息</title> </head> <body> <form name="customForm" action="${pageContext.request.contextPath}/updateCustomSubmit.action" method="post" enctype="multipart/form-data"> <input type="hidden" name="id" value="${hhCustom.id }" /> 修改客戶信息: <table width="100%" border=1> <tr> <td>客戶名稱</td> <td><input type="text" name="name" value="${hhCustom.name }" /></td> </tr> <tr> <td>客戶郵箱</td> <td><input type="text" name="mail" value="${hhCustom.mail }" /></td> </tr> <tr> <td>客戶電話號碼</td> <td><input type="text" name="phoneNumber" value="${hhCustom.phoneNumber }" /></td> </tr> <tr> <td>客戶類型</td> <td><select name="category"> <c:forEach items="${customTypes}" var="customType"> <%-- <option value="${customType.key }">${customType.value}</option> --%> <c:if test="${hhCustom.category==customType.value }"> <option value="${customType.value }" selected="selected">${customType.value }</option> </c:if> <option value="${customType.value }">${customType.value}</option> </c:forEach> </select></td> </tr> <tr> <td>客戶頭像</td> <td><c:if test="${hhCustom.pic!=null }"> <img id="img_old" src="/pic/${hhCustom.pic }" width="100" height="100" /> </c:if> <img id="showimg" src="" style="display:none;" width="100" height="100"/> <input type="file" name="custom_pic" onchange="showImg(this)"/> </td> </tr> </table> <input type="submit" value="提交"/> </form> </body> </html>