一、從Android上傳文件到SpringBoot
在開發過程中，經常需要上傳文件到後端伺服器。這裡介紹一種將Android文件上傳到SpringBoot伺服器的方法。主要過程如下：
1、在Android中選擇文件
private static final int FILE_SELECT_CODE = 1;
private void showFileChooser() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
intent.addCategory(Intent.CATEGORY_OPENABLE);
try {
startActivityForResult(Intent.createChooser(intent, "請選擇一個文件"), FILE_SELECT_CODE);
} catch (android.content.ActivityNotFoundException ex) {
// no file manager installed
}
}2、在Android中上傳文件
if (resultCode == RESULT_OK) {
if (requestCode == FILE_SELECT_CODE) {
// Get the Uri of the selected file
Uri uri = data.getData();
String filePath = FileUtils.getPath(this, uri);
Log.d(TAG, "file path:" + filePath);
uploadFile(filePath);
}
}
private void uploadFile(String filePath) {
if (filePath == null) {
Toast.makeText(this, "請選擇文件", Toast.LENGTH_SHORT).show();
return;
}
File file = new File(filePath);
RequestBody fileBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
MultipartBody.Part body = MultipartBody.Part.createFormData("file", file.getName(), fileBody);
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("http://localhost:8080/")//後端地址
.addConverterFactory(GsonConverterFactory.create())
.build();
UploadService uploadService = retrofit.create(UploadService.class);
Call<Result> resultCall = uploadService.uploadFile(body);
resultCall.enqueue(new Callback<Result>() {
@Override
public void onResponse(Call<Result> call, Response<Result> response) {
Result result = response.body();
if (result.isSuccess()) {
Toast.makeText(MainActivity.this, "上傳成功", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(MainActivity.this, result.getMessage(), Toast.LENGTH_SHORT).show();
}
}
@Override
public void onFailure(Call<Result> call, Throwable t) {
Toast.makeText(MainActivity.this, "上傳失敗", Toast.LENGTH_SHORT).show();
}
});
}3、後端使用SpringBoot接收文件
@PostMapping("/uploadFile")
public Result uploadFile(@RequestParam("file") MultipartFile file) {
if (!file.isEmpty()) {
String fileName = file.getOriginalFilename();
String filePath = "d:/upload/";
File dest = new File(filePath + fileName);
try {
file.transferTo(dest);
return Result.success("上傳成功");
} catch (IOException e) {
e.printStackTrace();
}
}
return Result.fail("沒有選擇文件");
}二、Android上傳文件控制項
除了手動選擇文件上傳外，還可以使用第三方上傳文件控制項，例如百度雲提供的開源控制項BOSUploadFileSDK。
compile 'com.baidu:bos-upload-sdk:1.0.3'
//...
BosUploadFileSDK.getInstance(this, AK, SK, endpoint, bucketName)
.selectFileAndUpload(new OnUploadListener() {...});三、Android文件選擇和上傳
一個通用的Android文件選擇和上傳示例：
EditText filePathET;//顯示文件路徑的文本框
Button chooseFileBT;//點擊選擇文件的按鈕
Button uploadBT;//點擊上傳按鈕
ProgressBar uploadPB;//顯示上傳進度
String filePath;//上傳文件的路徑
private void chooseFile() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
intent.addCategory(Intent.CATEGORY_OPENABLE);
try {
startActivityForResult(Intent.createChooser(intent, "請選擇要上傳的文件"), 1);
} catch (ActivityNotFoundException ex) {
showToast("請先安裝一個文件管理程序");
}
}
private void uploadFile() {
if (filePath == null) {
showToast("請選擇要上傳的文件");
return;
}
File file = new File(filePath);
RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
MultipartBody.Part body = MultipartBody.Part.createFormData("file", file.getName(), requestFile);
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
UploadService uploadService = retrofit.create(UploadService.class);
Call<Result> call = uploadService.uploadFile(body);
call.enqueue(new Callback<Result>() {
@Override
public void onResponse(Call<Result> call, Response<Result> response) {
Result result = response.body();
if (result != null && result.isSuccess()) {
showToast("上傳成功");
} else {
showToast("上傳失敗");
}
}
@Override
public void onFailure(Call<Result> call, Throwable t) {
showToast("上傳失敗");
}
});
}四、Android上傳文件源碼和PHP源碼
Android上傳文件源碼和後端PHP源碼：
Android源碼：
private void uploadFile() {
if (filePath == null) {
showToast("請選擇要上傳的文件");
return;
}
File file = new File(filePath);
RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
MultipartBody.Part body = MultipartBody.Part.createFormData("file", file.getName(), requestFile);
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
UploadService uploadService = retrofit.create(UploadService.class);
Call<Result> call = uploadService.uploadFile(body);
call.enqueue(new Callback<Result>() {
@Override
public void onResponse(Call<Result> call, Response<Result> response) {
Result result = response.body();
if (result != null && result.isSuccess()) {
showToast("上傳成功");
} else {
showToast("上傳失敗");
}
}
@Override
public void onFailure(Call<Result> call, Throwable t) {
showToast("上傳失敗");
}
});
}PHP源碼：
<?php
$file=$_FILES['file'];
$info=pathinfo($file['name']);
$ext=$info['extension'];
$types=array("jpg","png","gif","bmp");
if(!in_array($ext,$types)){
exit("格式錯誤，只支持後綴為jpg、png、gif、bmp的文件！");
}
$path="./uploads/".$file['name'];
$tmp=$file['tmp_name'];
move_uploaded_file($tmp,$path);//移動上傳文件
echo "上傳成功！";
?>五、Android和iOS傳文件
Android和iOS傳文件使用的是相同的協議，可以使用同一套代碼來實現文件的上傳和下載。
六、Android上傳文件到伺服器
上傳文件到伺服器需要先在Android客戶端進行文件的選擇和上傳，並將文件流通過HTTP請求發送到伺服器。伺服器端則需要解析HTTP請求，及時接收並處理上傳的文件。Android客戶端使用Apache HttpClient發起請求，伺服器端使用SpringBoot來接收請求並處理文件。
七、Android上傳文件到雲端
Android上傳文件到雲端，可以使用雲存儲服務，例如阿里雲OSS、騰訊雲COS等。
// AliOSS示例代碼
private OSS oss;
private void initOss(String endpoint, String accessKeyId, String accessKeySecret, String bucketName) {
OSSCredentialProvider credentialProvider = new OSSPlainTextAKSKCredentialProvider(accessKeyId, accessKeySecret);
ClientConfiguration configuration = new ClientConfiguration();
configuration.setConnectionTimeout(15 * 1000);
configuration.setSocketTimeout(15 * 1000);
oss = new OSSClient(getApplicationContext(), endpoint, credentialProvider, configuration);
}
private void uploadToAliOSS(String objectKey, String filePath) {
PutObjectRequest put = new PutObjectRequest(bucketName, objectKey, filePath);
oss.asyncPutObject(put, new OSSCompletedCallback() {
@Override
public void onSuccess(PutObjectRequest request, PutObjectResult result) {
showToast("上傳成功");
}
@Override
public void onFailure(PutObjectRequest request, ClientException clientException, ServiceException serviceException) {
showToast("上傳失敗");
}
});
}八、Android上傳文件到倉庫
Android上傳文件到倉庫，可以使用第三方倉庫服務，例如MavenCentral倉庫中的nexus-staging-maven-plugin插件。
// Gradle示例代碼
apply plugin: 'maven-publish'
publishing {
publications {
maven(MavenPublication) {
groupId "com.example"
artifactId "library"
version "1.0.0"
artifact("$buildDir/outputs/aar/library-release.aar")
}
}
repositories {
maven {
url 'http://localhost:8081/repository/maven-releases/'
credentials {
username 'admin'
password 'admin'
}
}
}
}九、Android上傳文件到OSS
Android上傳文件到OSS，可以使用阿里雲OSS提供的Java SDK。
// Gradle示例代碼
implementation 'com.aliyun.oss:aliyun-sdk-oss:2.9.2'
// Java示例代碼
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
InputStream inputStream = new FileInputStream("local_file_path");
PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, inputStream);
PutObjectResult putObjectResult = ossClient.putObject(putObjectRequest);
ossClient.shutdown();十、亞馬遜S3 Android上傳文件
亞馬遜S3 Android上傳文件需要在Android客戶端集成亞馬遜提供的AWSService SDK。
// Gradle示例代碼
implementation 'com.amazonaws:aws-android-sdk-s3:2.5.6'
// Java示例代碼
AmazonS3 s3Client = new AmazonS3Client(new BasicAWSCredentials(accessKeyId, secretKey));
s3Client.setRegion(Region.getRegion(Regions.fromName(region)));
PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, file);
s3Client.putObject(putObjectRequest);原創文章，作者：小藍，如若轉載，請註明出處：https://www.506064.com/zh-tw/n/151247.html
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