Heim > Artikel > Web-Frontend > Ausführliche Erklärung zum Hochladen von Bildern in Laui (mit Code)
Layui-Upload ähnelt dem Bootstrap-Upload, außer dass kein Plug-in installiert werden muss.
Lass uns einen Blick darauf werfen Hier ist der verwendete Avatar
Klicken Sie, um den Upload zu starten.
Geben Sie JSON zurück und fügen Sie ihn hinzu Füllen Sie das Formular aus und senden Sie es zusammen mit anderen Daten.
Werfen Sie zunächst einen Blick auf die JSP-Schnittstelle
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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">
<title>个人资料</title>
<link href="${pageContext.request.contextPath }/js/layui/css/layui.css"
rel="stylesheet" />
<script src="${pageContext.request.contextPath }/js/layui/layui.js"
charset="utf-8"></script>
<script src="${pageContext.request.contextPath }/js/jquery-1.8.3.js"></script>
<script type="text/javascript">
layui.use('upload',function(){
var upload = layui.upload;
upload.render({
elem: '#fileBtn'
,url: '../updatePersonalById.do'
,accept: 'file'
,auto: false
,bindAction: '#uploadBtn'
,done: function(res){
alert(res.data.src);
$("[name=userImage]").val(res.data.src);
}
});
});
</script>
</head>
<body>
<form class="layui-form" action="../updatePersonalByIdSuccess.do" method="post" charset="utf-8" target="_parent">
<div class="layui-form-item" style="margin-top: 20px;">
<label class="layui-form-label">编号</label>
<div class="layui-input-block">
<input type="text" name="userId" required lay-verify="required" value="${ui.userId }" autocomplete="off" readonly="readonly" class="layui-input">
</div>
</div>
<div class="layui-form-item" style="margin-top: 20px;">
<label class="layui-form-label">登录名</label>
<div class="layui-input-block">
<input type="text" name="userName" required lay-verify="required" value="${ui.userName }" autocomplete="off" readonly="readonly" class="layui-input">
</div>
</div>
<div class="layui-form-item" style="margin-top: 20px;">
<label class="layui-form-label">密码</label>
<div class="layui-input-block">
<input type="password" name="userPwd" required lay-verify="required" value="${ui.userPwd }" autocomplete="off" class="layui-input">
</div>
</div>
<div class="layui-form-item" style="margin-top: 20px;">
<label class="layui-form-label">确认密码</label>
<div class="layui-input-block">
<input type="password" name="reuserPwd" required lay-verify="required" value="${ui.userPwd }" autocomplete="off" class="layui-input">
</div>
</div>
<div class="layui-form-item" style="margin-top: 20px;">
<label class="layui-form-label">真实姓名</label>
<div class="layui-input-block">
<input type="text" name="userrealName" required lay-verify="required" value="${ui.userrealName }" autocomplete="off" class="layui-input">
</div>
</div>
<div class="layui-form-item" style="margin-top: 20px;">
<label class="layui-form-label">电话</label>
<div class="layui-input-block">
<input type="text" name="userPhone" required lay-verify="required" value="${ui.userPhone }" autocomplete="off" class="layui-input">
</div>
</div>
<div class="layui-form-item" style="margin-top: 20px;">
<label class="layui-form-label">地址</label>
<div class="layui-input-block">
<input type="text" name="userAds" required lay-verify="required" value="${ui.userAds }" autocomplete="off" class="layui-input">
</div>
</div>
<div class="layui-upload">
<label class="layui-form-label">头像:</label>
<div class="layui-upload layui-input-block">
<input type="hidden" name="userImage" value="${ui.userImage }" required lay-verify="required" />
<button type="button" class="layui-btn layui-btn-primary" id="fileBtn"><i class="layui-icon"></i>选择文件</button>
<button type="button" class="layui-btn layui-btn-warm" id="uploadBtn">开始上传</button>
</div>
</div>
<div class="layui-form-item" style="margin-top: 20px;">
<div class="layui-input-block">
<button class="layui-btn" id="btn1" lay-submit lay-filter="formDemo">提交</button>
<button type="reset" class="layui-btn layui-btn-primary">重置</button>
</div>
</div>
</form>
</body>
</html>Interaktion mit Controller.do
package com.supermanager.controller;
import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.List;
import java.util.Random;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import com.supermanager.entity.LogsInfo;
import com.supermanager.entity.RoleInfo;
import com.supermanager.entity.StoragesInfo;
import com.supermanager.entity.UserInfo;
import com.supermanager.service.LogsService;
import com.supermanager.service.RoleInfoService;
import com.supermanager.service.StoragesService;
import com.supermanager.service.UserInfoService;
import net.sf.json.JSONArray;
@Controller
@Scope("prototype")
public class UserInfoController {
@Resource
private UserInfoService userInfoService;
@Resource
private LogsService logService;
@Resource
private RoleInfoService roleInfoService;
@Resource
private StoragesService storagesService;
/**
* 修改个人资料
* @param session
* @param file
* @param ui
* @return
* @throws IOException
* @throws IllegalStateException
*/
@RequestMapping(value="updatePersonalById")
public @ResponseBody String updatePersonal(@RequestParam("file") MultipartFile file,@ModelAttribute UserInfo ui,HttpServletRequest request) throws IllegalStateException, IOException{
String oldName = file.getOriginalFilename();
String path = request.getServletContext().getRealPath("/upload/");
String fileName = changeName(oldName);
String rappendix = "upload/" + fileName;
fileName = path + "/" + fileName;
File file1 = new File(fileName);
file.transferTo(file1);
String str = "{\"code\": 0,\"msg\": \"\",\"data\": {\"src\":\"" + rappendix + "\"}}";
return str;
}
public static String changeName(String oldName){
Random r = new Random();
Date d = new Date();
String newName = oldName.substring(oldName.indexOf('.'));
newName = r.nextInt(99999999) + d.getTime() + newName;
return newName;
}
@RequestMapping(value="updatePersonalByIdSuccess")
public String updatePersonalByIdSuccess(@ModelAttribute UserInfo ui){
UserInfo uif = userInfoService.FindUserByUserId(ui.getUserId());
ui.setRoleId(uif.getRoleId());
ui.setUserSex(uif.getUserSex());
ui.setUserAge(uif.getUserAge());
int a = userInfoService.Update(ui);
if(a!=0){
return "redirect:exitSystem.do";
}
return "error";
}
}Der Effekt nach erfolgreichem Hochladen ist wie unten gezeigt
Weitere Artikel zum Thema Lauii finden Sie in der Spalte Tutorial zur Verwendung von Lauii.
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