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网站编辑岗位门户网站解决方案

news 2025/11/8 4:09:57

网站编辑岗位,门户网站解决方案,邢台市官网,哪些网站是用响应式布局做的准备确定好服务器端文件保存的位置确定好请求参数名（前后端要保持一致的喔）如果手机是通过usb连接到电脑的，需要执行一下： adb reverse tcp:8080 tcp:8080 AndroidManifest.xml的<application/>节点中加上: android:usesC…

准备

确定好服务器端文件保存的位置
确定好请求参数名（前后端要保持一致的喔）
如果手机是通过usb连接到电脑的，需要执行一下：
- adb reverse tcp:8080 tcp:8080
AndroidManifest.xml的<application/>节点中加上:
- android:usesCleartextTraffic="true"
引入依赖:
- implementation("com.google.net.cronet:cronet-okhttp:0.1.0")

开始

Android端

Activity(ComponentActivity)private lateinit var imagePicker: ActivityResultLauncher<PickVisualMediaRequest>override fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)imagePicker = registerForActivityResult(ActivityResultContracts.PickVisualMedia()) {context.contentResolver.openInputStream(it)?.use {val file = File(File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS), "TempFiles").smartCreate(true), "Image_${currentTimeMillis}.png").smartCreate()it.copyTo(FileOutputStream(file))launch(Dispatchers.Main) { launch(Dispatchers.IO) { val clint = OkHttpClient()val requestBody = MultipartBody.Builder().apply {setType(MultipartBody.FORM)// 这个 "file" 是前后端参数名，保持一致，不然springboot报错addFormDataPart("file", imageFile!!.name, RequestBody.create(MediaType.parse("image/*"),imageFile))}.build()val responseBody = clint.newCall(Request.Builder().post(requestBody).url("http://localhost:8080/upload").build()).execute().body()logE { "${responseBody?.string()}" }}}}}
}inline val currentTimeMillis: Longget() = System.currentTimeMillis()fun File.smartCreate(isDir: Boolean = false): File {if (!exists()) {parentFile?.mkdirs()if (isDir) mkdir() else createNewFile()}return this
}

服务端(`Spring Boot`)

1.在`application.properties`文件中配置文件相关的参数

spring.servlet.multipart.max-request-size=50MB
spring.servlet.multipart.max-file-size=50MB# 上传的文件保存在哪个文件下，这里保存到项目文件夹下的upload文件夹
# 也可以指定其他文件夹，把路径复制上就行，比如 upload.file.path=C:\Users\Public\Pictures
upload.file.path=upload

2.写`Controller`方法

import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;@RestController
public class TestController {@Value("${upload.file.path}")private String uploadPathStr;/*** 保持请求参数名一致* * @param file* @return*/@PostMapping("/upload")public @ResponseBody boolean upload(@RequestParam("file") MultipartFile file){if(file == null || file.isEmpty() || filename == null || filename.isEmpty())return false;try(InputStream inputStream = file.getInputStream()) {Path uploadPath = Paths.get(uploadPathStr);if(!uploadPath.toFile().exists())uploadPath.toFile().mkdirs();Files.copy(inputStream, Paths.get(uploadPathStr).resolve(file.getOriginalFilename()), StandardCopyOption.REPLACE_EXISTING);System.out.println("upload file , filename is "+file.getOriginalFilename() + ", filePath = " + Paths.get(uploadPathStr).resolve(file.getOriginalFilename()).toAbsolutePath().toString());return true;}catch (IOException e) {e.printStackTrace();return false;}}
}