Introduction This article is a practical part of the previous article. After mastering the basic request format of multipart/form-data in HTTP, now through the official multipart< of Go language /code> library to gain a deeper understanding of how to send and handle requests in the multipart/form-data format Let’s first look at a piece of code […]
Tag: multipart
springcloud+vue3 implements multipart upload and resumes upload at breakpoints
Background When working on some application-level service platforms, sometimes users need to upload a larger file, but after the upload fails, they need to support uploading from the failed point next time. At this time, endpoint resume and multi-part upload need to be used. s solution. This article introduces a strategy to implement this scenario, […]
RestTemplate directly sends memory file object multipart
1. RestTemplate directly sends the memory file object multipart 1. Create a byte array output stream object and use the write method of the Word document object to write its content to the stream 2. Use Spring’s RestTemplate to send POST requests containing attachments. Use HttpHeaders to set multipart/form-data headers: Then, a resource object consisting […]
Thoroughly understand the MultipartFile interface and File class in Java
Foreword Whether in projects or daily needs, we always have the need to operate file data. It is inevitable to use the File class to operate files in Java, and Spring provides us with an interface for operating files, through which we can obtain The file object uploaded by the user and written to the […]
Multipart upload of large files based on Node.js
When we upload files, if the file is too large, the request may time out. Therefore, when you need to upload a large file, you need to upload the file in parts. At the same time, if the file is too large and the network is not good, how can the file be resumed at […]
Request tool class and convert base64 into MultipartFile tool class
Request tool class hutool package HttpRequest sends post request with request header and request body Save MultipartFile file to local package org.jeecg.modules.quota.utils; import cn.hutool.core.bean.BeanUtil; import cn.hutool.http.HttpRequest; import cn.hutool.json.JSONArray; import cn.hutool.json.JSONObject; import cn.hutool.json.JSONUtil; import org.jeecg.common.constant.CommonConstant; import org.jeecg.common.util.MinioUtil; import org.jeecg.common.util.ZOSUtil; import org.jeecg.modules.quota.controller.DataSynchronismController; import org.jeecg.modules.quota.entity.SysCertPdf; import org.jeecg.modules.quota.service.ISysCertPdfService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.client.RestTemplate; import org.springframework.web.multipart.MultipartFile; import java.io.*; import java.util.*; import […]
MultipartFile source code for SpringMVC upload files
HttpURLConnection download file, byte array POST multipart/form-data
View POST multipart/form-data protocol format The downloaded file is stored in a byte array and POST multipart/form-data interface package com.http; import java.io.BufferedInputStream; import java.io.BufferedReader; import java.io.Closeable; import java.io.DataOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; import java.util.HashMap; import java.util.Iterator; import java.util.Map; public class HttpDownload { /** * * […]
ssm framework (based on annotation) MultipartFile object is null
Code: This is my backend code @ResponseBody @RequestMapping(“/uploadImg”) public Object testUp(MultipartFile pimage,HttpSession session) throws IOException{ //Get the file name of the uploaded file String filename = pimage.getOriginalFilename(); //Get the suffix name of the deleted file String suffixName = filename.substring(filename.lastIndexOf(“.”)); //Use UUID as file name String uuid = UUID.randomUUID().toString(); filename = uuid + suffixName; //Get the […]
Gateway solves the problem of repeated acquisition of body streams, encrypts, decrypts, adds and deletes parameters for application/json, multipart/form-data, x-www-form-urlencoded.
1. CacheRequestFilter global filter solves the problem of repeated acquisition of body stream import org.springframework.cloud.gateway.filter.GatewayFilterChain; import org.springframework.cloud.gateway.filter.GlobalFilter; import org.springframework.core.Ordered; import org.springframework.core.io.buffer.DataBuffer; import org.springframework.core.io.buffer.DataBufferUtils; import org.springframework.core.io.buffer.DefaultDataBuffer; import org.springframework.core.io.buffer.DefaultDataBufferFactory; import org.springframework.http.HttpMethod; import org.springframework.http.server.reactive.ServerHttpRequest; import org.springframework.http.server.reactive.ServerHttpRequestDecorator; import org.springframework.stereotype.Component; import org.springframework.web.server.ServerWebExchange; import reactor.core.publisher.Flux; import reactor.core.publisher.Mono; @Component public class CacheRequestFilter implements GlobalFilter, Ordered { @Override public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain […]