Java Spring Boot 表单上传单个文件和多个文件

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上传单个文件

html：

<form id="testForm" class="layui-form" lay-filter="testForm" ENCTYPE="multipart/form-data" action="##" method="POST"><div class="layui-form-item">
<label class="layui-form-label">名字</label>
<div class="layui-input-block">
<input type="text" name="uName"  class="layui-input">
</div>
</div><div class="layui-form-item">
<label class="layui-form-label">上传</label>
<div class="layui-input-block">
<input name="imgFile" type="file"/>
</div>
</div>
</form>

Js：

                  var xa = new FormData($("#testForm")[0]);$.ajax({type: "POST",//请求得POSTurl: ajaxUrl + "cms/from_File",//自己的路径data: xa,dataType: "text",async: false,cache: false,contentType: false,processData: false,success: function(data) {//。。。。。。。。。。。},error: function(e) {layer.alert('网络异常');}});return false; });

 

Java：

@RequestMapping(value = "/from_File", method = RequestMethod.POST)public String layout_edit_update(@RequestParam("imgFile") MultipartFile imgFile, HttpServletRequest request) throws FileNotFoundException, ParseException {String uName= request.getParameter("uName");String DirPath = "D:\\test\\";File outDir = new File(DirPath);outDir.mkdirs();//校验文件夹路径是否存在，不存在创建String FilePath = DirPath +"111.png";//文件路径格式视情况getFile(imgFile,FilePath);return String.valueOf(1);}public static boolean getFile(MultipartFile file, String outPath) {try {File newFile = new File(outPath);FileOutputStream Os = new FileOutputStream(newFile);BufferedOutputStream out = new BufferedOutputStream(Os);out.write(file.getBytes());out.flush();out.close();} catch (IOException e) {e.printStackTrace();return false;}return true;}

Java 配置文件application.properties 设置文件大小：

#上传文件大小
# Single file max size  
multipart.maxFileSize=50Mb
# All files max size  
multipart.maxRequestSize=50Mb

启动类配置文件上传大小：

import javax.servlet.MultipartConfigElement;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.MultipartConfigFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;@SpringBootApplication
@Configuration
public class App 
{public static void main( String[] args ){SpringApplication.run(App.class, args);System.out.println( "SpringBoot Start Success!" );}/**  * 文件上传配置  * @return  */  @Bean  public MultipartConfigElement multipartConfigElement() {  MultipartConfigFactory factory = new MultipartConfigFactory();  //单个文件最大  factory.setMaxFileSize("10240KB"); //KB,MB  /// 设置总上传数据总大小  factory.setMaxRequestSize("102400KB");  return factory.createMultipartConfig();  }

==========================================================================================

上传多文件：

html:

<form id="testForm" class="layui-form" lay-filter="testForm" ENCTYPE="multipart/form-data" action="##" method="POST"><div class="layui-form-item">
<label class="layui-form-label">名字</label>
<div class="layui-input-block">
<input type="text" name="uName"  class="layui-input">
</div>
</div><div class="layui-form-item">
<label class="layui-form-label">上传</label>
<div class="layui-input-block">
<input name="imgFiles" type="file"/>
</div>
</div><div class="layui-form-item">
<label class="layui-form-label">上传</label>
<div class="layui-input-block">
<input name="imgFiles" type="file"/>
</div>
</div><div class="layui-form-item">
<label class="layui-form-label">上传</label>
<div class="layui-input-block">
<input name="imgFiles" type="file"/>
</div>
</div></form>

Js:

                  var xa = new FormData($("#testForm")[0]);$.ajax({type: "POST",//请求得POSTurl: ajaxUrl + "cms/from_File",//自己的路径data: xa,dataType: "text",async: false,cache: false,contentType: false,processData: false,success: function(data) {//。。。。。。。。。。。},error: function(e) {layer.alert('网络异常');}});return false; });

Java:

@RequestMapping(value = "/from_File", method = RequestMethod.POST)public String layout_edit_update(@RequestParam("Files") MultipartFile Files, HttpServletRequest request) throws FileNotFoundException, ParseException {String uName= request.getParameter("uName");String DirPath = "D:\\test\\";File outDir = new File(DirPath);outDir.mkdirs();//校验文件夹路径是否存在，不存在创建if (Files!= null && Files.length > 0) {for (int i = 0; i < Files.length; i++) {MultipartFile file = Files[i];String FilePath = DirPath +i+".png";//文件路径格式视情况getFile(imgFile,FilePath);//输出保存文件}}return String.valueOf(1);}public static boolean getFile(MultipartFile file, String outPath) {try {File newFile = new File(outPath);FileOutputStream Os = new FileOutputStream(newFile);BufferedOutputStream out = new BufferedOutputStream(Os);out.write(file.getBytes());out.flush();out.close();} catch (IOException e) {e.printStackTrace();return false;}return true;}

 

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