One Demo handles the front-end and back-end multi-part uploading of large files, resumed uploading at breakpoints, and instantaneous uploading.

1Foreword File uploading is very common in project development. Most projects will involve the uploading of pictures, audios, videos, and files. Usually a simple Form can upload small files, but when encountering large files, such as more than 1GB, or When the user’s network is relatively slow, simple file upload is not applicable. The user […]

ESP32-DHT11 temperature and humidity data upload to MQTT server

ESP32-DHT11 temperature and humidity data uploaded to MQTT server Introduction ESP32 DHT11 experiment Experiment instructions wiring MQTT server establish connection Add subscription ESP32 drives DHT11 ESP32 sends data to MQTT server Upload temperature and humidity data Experimental results Introduction ESP32 Click on the image to purchase The ESP32 series modules integrate Wi-Fi, traditional Bluetooth and […]

Based on 51 microcontroller Bluetooth upload temperature and humidity control servo switch

1. Foreword In the past two years, the requirements and difficulty of graduation projects and graduation defenses have continued to increase. Traditional graduation projects lack innovation and highlights, and often fail to meet the requirements for graduation defenses. In the past two years, junior students and junior students have constantly told Senior Xiaohong to do […]

The interface post requests to upload files, the files are posted in the form of a stream, and the interface receives the file stream.

import com.alibaba.fastjson.JSONObject; import org.apache.commons.lang3.StringUtils; import org.apache.http.HttpEntity; import org.apache.http.NameValuePair; import org.apache.http.ParseException; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.utils.URIBuilder; import org.apache.http.entity.ContentType; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.mock.web.MockMultipartFile; import org.springframework.web.multipart.MultipartFile; import javax.imageio.ImageIO; import javax.imageio.ImageReader; import javax.imageio.stream.ImageInputStream; import java.io.*; import java.net.HttpURLConnection; import java.net.URISyntaxException; import java.net.URL; import java.net.URLEncoder; import java.util.*; public […]

OkHttpUtils.post() uploads files (Android front-end upload and server background reception)

Android terminal 1. First of all, you need to use the package, now add dependencies in build.gradle(app) implementation ‘com.github.xxl6097:okhttputils:2.4.1’ //Or implementation ‘com.zhy:okhttputils:2.6.2’ //The first one used here Without further ado, let’s get straight to the code. 2. Upload code multiFileUpload method public void multiFileUpload(ArrayList<Image> image) throws UnsupportedEncodingException {<!– –> Be a json string and set […]

How to upload your own Jar to the Maven central repository

During project development, we often use Maven to pull open source third-party Jar packages from the warehouse. This article will guide you to publish your own code or open source projects to the Maven central warehouse, so that others can directly rely on your Jar package without first downloading your code and then installing it […]

One Demo handles the front-end and back-end multi-part uploading of large files, resumed uploading at breakpoints, and instant uploading.

1Foreword File uploading is very common in project development. Most projects will involve the uploading of pictures, audios, videos, and files. Usually a simple Form can upload small files, but when encountering large files, such as more than 1GB, or When the user’s network is relatively slow, simple file upload is not applicable. The user […]

Android file upload error java.net.SocketTimeoutException: timeout

//Upload data public void upload_Data(String jsons) {<!– –> // String categoryNo = “”; // String CategoryName = “”; // String location_no = “”; // JSONObject jsonObject = new JSONObject(); // jsonObject.put(“userNo”, “003”); // jsonObject.put(“categoryNo”, “”); // jsonObject.put(“categoryName”, “”); // jsonObject.put(“locationName”, “Guangzhou”); // String json = “”; showProgressDialog(“Prompt”, “Uploading, please wait…”); // System.out.println(“Test jsons:” + jsons); […]