【SpringBoot】Thymeleaf融合ajax

ゝ一世哀愁。 2022-09-15 15:43 59阅读 0赞

### 文章目录 ###

*  效果
 *  ajax.html
 *  Controller

# 效果 #

局部刷新
    不会出现表单重复提交

![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA55GeIOaWsA_size_20_color_FFFFFF_t_70_g_se_x_16]

# ajax.html #

<!DOCTYPE html>
    
    
    <html xmlns: th="http://www.thymeleaf.org">
    
    <head>
        <meta charset="UTF-8">
        <title>index</title>
    </head>
    <body>
    <div>
        <span>该区域不会被刷新</span>
    
        <div id="child_view">
            <span>该区域会被刷新</span>
        </div>
    </div>
    
    
    
    
    <form id="addForm" action="/json" method="post"enctype=" multipart/form-data">
        <input type="text" name="name" placeholder="请输入名字" />
        <input type="password" name="password" placeholder="密码"/>
        <input type="file" name="file" />
    </form>
    <button type="button" id="submitAdd">确认</button>
    
    
    <script src="/js/jquery-3.3.1.min.js"></script>
    
    
    <script type = "text/javascript" th:inline="javascript">
        /*<![CDATA[*/
        var basePath = /*[[${ #httpServletRequest.getScheme() + "://" + #httpServletRequest.getServerName() + ":" + #httpServletRequest.getServerPort() + #httpServletRequest.getContextPath()}]]*/;
    
    
        $('#button').bind('click', function () { 
                refresh();
            });
    
        function refresh() { 
            $.ajax({  //refresh
                url: basePath + '/json',
                type: 'post',
                dataType: 'text',
                data: { 
    
                },
                cache: false,
                async: true,
                success: function (data) { 
                    var json = eval("(" + data + ")")
                    console.log(data)
                    console.log(json)
                     $("#child_view").empty();
                     $("#child_view").append(data);
                }
            });
        }
    
    /*    $("#submitAdd").click(function(){ 
          var targetUrl = $("#addForm").attr("action");
          var data = $("#addForm").serialize();
    	  console.log(basePath)
    	  console.log(targetUrl)
    	  console.log(data)
           $.ajax({ 
            type:'post',
            url:basePath + targetUrl,
            cache: false,
    		async: true,
            data:data,  //重点必须为一个变量如：data
    
            success:function(data){ 
    			console.log("sucess")
    			console.log(data)
    			alert(data.name)
            },
            error:function(){ 
             alert("请求失败")
            }
           })
    
        }) */
    	
    
       // 带文件的表单
       $("#submitAdd").click(function(){ 
           var targetUrl = $("#addForm").attr("action");
           var data = new FormData($( "#addForm" )[0]);
    	   console.log(basePath)
    	   console.log(targetUrl)
    	   console.log(data)
    	   
            $.ajax({ 
             type:'post',
             url:basePath+targetUrl,
             cache: false,    //上传文件不需缓存
    		 async: true,
             processData: false, //需设置为false。因为data值是FormData对象，不需要对数据做处理
             contentType: false, //需设置为false。因为是FormData对象，且已经声明了属性enctype="multipart/form-data"
             data:data,
             // dataType:'json',
             success:function(data){ 
               console.log("sucess")
               console.log(data)
               console.log(data.name)
    		   $("#child_view").empty();
    		   $("#child_view").append(data.file);
             },
             error:function(){ 
              alert("请求失败")
             }
            })
         })
    
        /*]]>*/
    </script>
    </body>
    </html>

# Controller #

package com.ths.arsenaldnsnginxconfig.controller;
    
    import cn.hutool.json.JSON;
    import cn.hutool.json.JSONObject;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    import org.springframework.web.multipart.MultipartFile;
    import org.springframework.web.servlet.ModelAndView;
    
    //@Controller
    @RestController
    public class AjaxController { 
    
        @RequestMapping("/ajax")
        public ModelAndView ajax() { 
            return new ModelAndView("ajax");
        }
    
        @RequestMapping("/refresh")
        public String refresh(){ 
            return "refresh";
        }
        
    
        @RequestMapping("/json")
        public JSON json(String name, String password, MultipartFile file) { 
    
            JSONObject jsonObject = new JSONObject();
            jsonObject.putOpt("name", name);
            jsonObject.putOpt("pwd", password);
            System.out.println(file);
            System.out.println(file.getOriginalFilename());
            System.out.println(file.getOriginalFilename().length());
            if (file.getOriginalFilename().length() != 0) { 
                jsonObject.putOpt("file", file.getOriginalFilename());
            }else { 
                jsonObject.putOpt("file", "错误：请上传文件，再重新提交");
            }
            return jsonObject;
        }
    }

[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA55GeIOaWsA_size_20_color_FFFFFF_t_70_g_se_x_16]: /images/20220828/77f756cf94d143f8a0e115010dbb3e0b.png