<template>
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<view class="container">
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<view class="test-section">
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<text class="section-title">文件保存测试</text>
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<u-button @click="testSaveFile" type="primary" size="large" class="test-button">
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测试保存文件
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</u-button>
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<u-button @click="testParseMessage" type="success" size="large" class="test-button">
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测试解析报文
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</u-button>
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<u-button @click="showFileStatus" type="info" size="large" class="test-button">
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显示文件状态
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</u-button>
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</view>
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<view class="result-section">
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<text class="section-title">测试结果</text>
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<text class="result-text">{{ testResult }}</text>
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</view>
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</view>
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</template>
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<script>
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// 导入必要的 Android 类
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const android = plus.android;
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const Intent = android.importClass('android.content.Intent');
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const Settings = android.importClass('android.provider.Settings');
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const Uri = android.importClass('android.net.Uri');
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const Build = android.importClass('android.os.Build');
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const Environment = android.importClass('android.os.Environment');
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const MediaStore = android.importClass('android.provider.MediaStore');
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const ContentValues = android.importClass('android.content.ContentValues');
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const ContentResolver = android.importClass('android.content.ContentResolver');
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export default {
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data() {
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return {
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testResult: '',
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messageContent: '',
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fileName: 'vehicle_message_log.txt'
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}
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},
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methods: {
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async testSaveFile() {
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try {
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this.testResult = '开始测试文件保存...\n';
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const testContent = `[${new Date().toLocaleString()}] 测试报文数据
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{
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"type": "55AA51_RAW",
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"hexData": "55AA5128221111110F74011E000000086464000000001144AA5601CDFF0000016424000000000000000014FA",
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"timestamp": "${new Date().toISOString()}"
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}
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{
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"type": "55AA51_PARSED",
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"baseId": "3412",
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"tagId": "1111",
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"distance": 25.61,
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"hAngle": -45.2,
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"vAngle": 0,
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"signalStrength": 100,
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"angleConfidence": 100,
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"batteryLevel": 100,
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"deviceStatus": 0,
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"pressure": 0,
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"time": "${new Date().toLocaleString()}"
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}
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`;
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// 使用MediaStore API保存文件
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let result = await this.tryWriteWithMediaStore(this.fileName, testContent);
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if (!result) {
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result = await this.tryWriteWithLegacyMethod(this.fileName, testContent);
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}
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if (result) {
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this.testResult += `文件保存成功: ${result}\n`;
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uni.showToast({
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title: '测试文件保存成功',
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icon: 'success',
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duration: 3000
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});
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} else {
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this.testResult += '文件保存失败\n';
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uni.showToast({
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title: '测试文件保存失败',
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icon: 'none',
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duration: 3000
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});
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}
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} catch (error) {
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this.testResult += `保存失败: ${error.message}\n`;
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console.error('测试保存失败:', error);
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}
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},
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testParseMessage() {
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try {
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this.testResult = '开始测试报文解析...\n';
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// 模拟55AA51报文
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const testHex = '55AA5128221111110F74011E000000086464000000001144AA5601CDFF0000016424000000000000000014FA';
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// 解析报文
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this.parseAoaMessage(testHex);
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this.testResult += '报文解析测试完成\n';
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uni.showToast({
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title: '报文解析测试完成',
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icon: 'success',
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duration: 2000
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});
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} catch (error) {
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this.testResult += `解析失败: ${error.message}\n`;
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console.error('测试解析失败:', error);
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}
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},
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showFileStatus() {
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const status = {
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fileName: this.fileName,
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contentLength: this.messageContent.length,
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androidVersion: Build.VERSION.SDK_INT,
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storageState: Environment.getExternalStorageState()
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};
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this.testResult = `文件状态信息:
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文件名: ${status.fileName}
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内容长度: ${status.contentLength} 字符
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Android版本: ${status.androidVersion}
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存储状态: ${status.storageState}
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`;
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uni.showModal({
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title: '文件状态',
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content: this.testResult,
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showCancel: false,
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confirmText: '确定'
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});
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},
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// 使用 MediaStore API 保存文件 (Android 10+推荐)
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async tryWriteWithMediaStore(fileName, content) {
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return new Promise((resolve) => {
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try {
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// 获取ContentResolver
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const mainActivity = plus.android.runtimeMainActivity();
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const resolver = mainActivity.getContentResolver();
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// 设置文件信息
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const contentValues = new ContentValues();
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contentValues.put(MediaStore.Downloads.DISPLAY_NAME, fileName);
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contentValues.put(MediaStore.Downloads.MIME_TYPE, "text/plain");
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// 对于Android 10+需要指定RELATIVE_PATH
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if (Build.VERSION.SDK_INT >= 29) {
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contentValues.put(MediaStore.Downloads.RELATIVE_PATH, Environment.DIRECTORY_DOWNLOADS);
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}
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// 创建文件URI
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const collection = MediaStore.Downloads.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY);
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const fileUri = resolver.insert(collection, contentValues);
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if (!fileUri) {
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console.error("无法创建文件URI");
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resolve(false);
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return;
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}
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// 写入文件内容
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const outputStream = resolver.openOutputStream(fileUri);
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outputStream.write(plus.android.invoke(content, "getBytes", "UTF-8"));
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outputStream.close();
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console.log("通过MediaStore写入成功:", fileUri.toString());
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resolve(fileUri.toString());
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} catch (e) {
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console.warn("MediaStore写入失败:", e);
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resolve(false);
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}
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});
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},
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// 使用传统文件系统方法保存文件 (兼容旧版Android)
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async tryWriteWithLegacyMethod(fileName, content) {
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return new Promise((resolve) => {
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try {
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// 获取下载目录路径
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const downloadsDir = Environment.getExternalStoragePublicDirectory(
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Environment.DIRECTORY_DOWNLOADS
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).toString();
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const filePath = `${downloadsDir}/${fileName}`;
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// 使用Java文件API写入
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const File = plus.android.importClass('java.io.File');
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const FileOutputStream = plus.android.importClass('java.io.FileOutputStream');
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const file = new File(filePath);
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const fos = new FileOutputStream(file);
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fos.write(plus.android.invoke(content, "getBytes", "UTF-8"));
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fos.close();
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console.log("传统方法写入成功:", filePath);
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resolve(filePath);
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} catch (e) {
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console.warn("传统方法写入失败:", e);
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resolve(false);
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}
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});
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},
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// 模拟报文解析方法
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parseAoaMessage(hexStr) {
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console.log('开始解析55AA51报文:', hexStr);
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// 添加原始报文到缓存
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this.addMessageToCache({
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type: '55AA51_RAW',
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hexData: hexStr,
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timestamp: new Date().toISOString()
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});
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// 模拟解析结果
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const parsedData = {
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type: '55AA51_PARSED',
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baseId: '3412',
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tagId: '1111',
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distance: 25.61,
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hAngle: -45.2,
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vAngle: 0,
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signalStrength: 100,
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angleConfidence: 100,
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batteryLevel: 100,
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deviceStatus: 0,
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pressure: 0,
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time: new Date().toLocaleString()
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};
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// 添加解析后的数据到缓存
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this.addMessageToCache(parsedData);
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console.log('报文解析完成');
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},
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// 添加报文内容到缓存
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addMessageToCache(messageData) {
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try {
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const timestamp = new Date().toLocaleString();
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const messageLine = `[${timestamp}] ${JSON.stringify(messageData)}\n`;
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// 添加到缓存
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this.messageContent += messageLine;
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console.log('报文内容已添加到缓存:', messageData);
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} catch (error) {
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console.error('添加报文内容到缓存失败:', error);
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}
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}
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}
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}
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</script>
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<style>
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.container {
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padding: 40rpx;
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background-color: #f5f5f5;
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min-height: 100vh;
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}
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.test-section {
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background: #fff;
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padding: 40rpx;
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border-radius: 20rpx;
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margin-bottom: 40rpx;
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box-shadow: 0 4rpx 15rpx rgba(0,0,0,0.1);
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}
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.section-title {
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font-size: 36rpx;
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font-weight: bold;
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color: #333;
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margin-bottom: 30rpx;
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display: block;
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}
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.test-button {
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margin-bottom: 20rpx;
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width: 100%;
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}
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.result-section {
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background: #fff;
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padding: 40rpx;
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border-radius: 20rpx;
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box-shadow: 0 4rpx 15rpx rgba(0,0,0,0.1);
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}
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.result-text {
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font-size: 28rpx;
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color: #666;
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line-height: 1.6;
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white-space: pre-wrap;
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}
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</style>
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