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文件上传的逻辑001

This commit is contained in:
frank wang 2025-10-30 17:52:07 +08:00
parent f8adef2a9e
commit bc79e4176c
1 changed files with 82 additions and 50 deletions
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96
app/src/main/java/com/pxkj/jwzs/FirstActivity.java
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@ -260,17 +260,23 @@ public class FirstActivity extends BaseActivity {
}
private long currentDownloadId = -1; // 保存当前下载任务ID
/**
* ✅ 下载文件并调用系统 DownloadManager
*/
private void downloadFile(String url) {
new Thread(() -> {
try {
if (TextUtils.isEmpty(url)) {
Toast.makeText(this, "下载地址为空", Toast.LENGTH_SHORT).show();
handler.post(() ->
Toast.makeText(this, "下载地址为空", Toast.LENGTH_SHORT).show()
);
return;
}
if (url.startsWith("blob:") || url.startsWith("data:")) {
Toast.makeText(this, "无法直接下载 Blob 文件，请检查前端下载逻辑", Toast.LENGTH_SHORT).show();
handler.post(() ->
Toast.makeText(this, "无法直接下载 Blob 文件，请检查前端下载逻辑", Toast.LENGTH_SHORT).show()
);
return;
}
@ -296,16 +302,22 @@ public class FirstActivity extends BaseActivity {
DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
if (dm != null) {
Toast.makeText(this, "文件已开始下载，请等待", Toast.LENGTH_SHORT).show();
handler.post(() ->
Toast.makeText(this, "文件已开始下载，请等待", Toast.LENGTH_SHORT).show()
);
currentDownloadId = dm.enqueue(request);
startDownloadProgressMonitor(dm, currentDownloadId);
} else {
Toast.makeText(this, "系统下载服务不可用", Toast.LENGTH_SHORT).show();
handler.post(() ->
Toast.makeText(this, "系统下载服务不可用", Toast.LENGTH_SHORT).show()
);
}
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(this, "下载失败: " + e.getMessage(), Toast.LENGTH_SHORT).show();
handler.post(() ->
Toast.makeText(this, "下载失败: " + e.getMessage(), Toast.LENGTH_SHORT).show()
);
}
}).start();
}
@ -314,7 +326,7 @@ public class FirstActivity extends BaseActivity {
* ✅ 监控下载进度，每秒回调一次到前端
*/
private void startDownloadProgressMonitor(DownloadManager dm, long downloadId) {
new Thread(() -> {
DownloadManager.Query query = new DownloadManager.Query();
query.setFilterById(downloadId);
boolean downloading = true;
@ -327,35 +339,56 @@ public class FirstActivity extends BaseActivity {
int status = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_STATUS));
long total = cursor.getLong(cursor.getColumnIndex(DownloadManager.COLUMN_TOTAL_SIZE_BYTES));
long downloaded = cursor.getLong(cursor.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR));
if (status == DownloadManager.STATUS_RUNNING && total > 0) {
int progress = (int) ((downloaded * 100L) / total);
Toast.makeText(this, "下载中，当前进度为" + progress + "%", Toast.LENGTH_SHORT).show();
handler.post(() -> sendProgressToJs(progress));
handler.post(() -> {
sendProgressToJs(progress);
// 可选：减少 toast 频率，比如每 20% 提示一次
if (progress % 20 == 0) {
Toast.makeText(this, "下载中：" + progress + "%", Toast.LENGTH_SHORT).show();
}
});
} else if (status == DownloadManager.STATUS_SUCCESSFUL) {
downloading = false;
handler.post(() -> {
sendProgressToJs(100);
Toast.makeText(this, "下载完成，请到文件管理查看", Toast.LENGTH_SHORT).show();
downloading = false;
handler.post(() -> sendProgressToJs(100));
});
} else if (status == DownloadManager.STATUS_FAILED) {
Toast.makeText(this, "下载失败" + status + "," + total + "," + downloaded, Toast.LENGTH_SHORT).show();
downloading = false;
handler.post(() -> sendProgressToJs(-1));
handler.post(() -> {
sendProgressToJs(-1);
Toast.makeText(this, "下载失败", Toast.LENGTH_SHORT).show();
});
}
cursor.close();
}
} catch (Exception ignored) {
Toast.makeText(this, "文件已开始下载，请等待报错", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
e.printStackTrace();
downloading = false;
handler.post(() ->
Toast.makeText(this, "监控异常：" + e.getMessage(), Toast.LENGTH_SHORT).show()
);
}
}
}).start();
}
/**
* ✅ 向前端回调进度
*/
private void sendProgressToJs(int progress) {
try {
if (webView != null) {
String js = String.format("if(window.onDownloadProgress){window.onDownloadProgress(%d);}", progress);
webView.evaluateJavascript(js, null);
}
} catch (Exception ignored) {
Toast.makeText(this, "文件已开始下载，请等待报错sendProgressToJs", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
e.printStackTrace();
handler.post(() ->
Toast.makeText(this, "进度回调异常：" + e.getMessage(), Toast.LENGTH_SHORT).show()
);
}
}
@ -390,35 +423,34 @@ public class FirstActivity extends BaseActivity {
}
}
}
/**
* 上传文件到服务器
* ✅ 上传文件，并在上传成功后将 fileName、data、fileSize 传给前端
*/
private void uploadFile(Uri uri) {
new Thread(() -> {
try {
// ✅ 修改为你的文件上传接口地址
// String uploadUrl = "http://218.92.207.242:9678/file/upload"; // TODO: 替换为后端真实接口
// ✅ 上传接口
String uploadUrl = "http://20.47.196.98:40080/fwzx/v1.0.0/getServiceInfoByServiceId/32092423SJNB12202507111046530001/320924230000-3-0800-5CDEC9969D674E1CBB7E2F86A697B0D7/api/file/upload";
String token = getToken(); // ✅ 从本地获取前端传来的 token
String token = getToken();
if (TextUtils.isEmpty(token)) {
runOnUiThread(() -> Toast.makeText(this, "请先登录后再上传", Toast.LENGTH_SHORT).show());
return;
}
// 获取文件名
// ✅ 获取文件名
String fileName = getFileNameFromUri(uri);
if (TextUtils.isEmpty(fileName)) fileName = "upload_file";
// 读取文件内容
// ✅ 读取文件内容并计算文件大小
InputStream inputStream = getContentResolver().openInputStream(uri);
byte[] fileBytes = new byte[inputStream.available()];
inputStream.read(fileBytes);
inputStream.close();
// 使用 OkHttp 上传
long fileSize = fileBytes.length; // 文件大小（字节）
// ✅ 构建 OkHttp 上传请求
okhttp3.OkHttpClient client = new okhttp3.OkHttpClient();
okhttp3.RequestBody fileBody = okhttp3.RequestBody.create(
okhttp3.MediaType.parse("application/octet-stream"),
@ -431,7 +463,7 @@ public class FirstActivity extends BaseActivity {
okhttp3.Request request = new okhttp3.Request.Builder()
.url(uploadUrl)
.addHeader("accesstoken", token) // ✅ 添加 token 认证头
.addHeader("accesstoken", token) // ✅ 加 token
.post(requestBody)
.build();
@ -441,18 +473,17 @@ public class FirstActivity extends BaseActivity {
String result = response.body().string();
Log.d(TAG, "文件上传成功: " + result);
// ✅ 提取 fileName 与后端返回的 data
String safeResult = result.replace("'", "\\'"); // 避免 JS 语法错误
String safeResult = result.replace("'", "\\'");
String safeFileName = fileName.replace("'", "\\'");
// ✅ JS 回调：fileName、data、fileSize
runOnUiThread(() -> {
Toast.makeText(this, "上传成功", Toast.LENGTH_SHORT).show();
if (webView != null) {
// ✅ 传 fileName 与 data 到前端
String jsCode = String.format(
"window.onFileUploadSuccess && window.onFileUploadSuccess({fileName: '%s', data: %s})",
safeFileName, safeResult
"window.onFileUploadSuccess && window.onFileUploadSuccess({fileName: '%s', data: %s, fileSize: %.2f})",
safeFileName, safeResult, fileSize
);
webView.evaluateJavascript(jsCode, null);
}
@ -472,6 +503,7 @@ public class FirstActivity extends BaseActivity {
}).start();
}
/**
* 从 Uri 获取文件名
*/