MobileFirst 7.1 - 在 Android 上部署 JSONStore 混合应用程序时出现问题

Question

我正在尝试将 JSONStore 用于其中一项要求。

由于它是混合应用程序，我通过以下方式对其进行了配置 程序

使用应用程序描述符编辑器打开文件 application-descriptor.xml 单击设计选项卡。在概览下， 展开应用程序 [您的应用程序的名称]。单击可选 特征。单击添加。选择 JSONStore。单击确定。在项目中 资源管理器视图，右键单击标题为您的文件夹 应用名称。单击运行方式。在 MobileFirst Development 上单击运行 服务器。

这是我用来在 JSONStore 中创建文档的示例代码。我按照documentation 中给出的说明进行操作。

WL.Logger.debug ("Successfully connected to MobileFirst Server.");

    var collectionName = 'SomeFlag';

    if(WL.JSONStore.get(collectionName) == null && WL.JSONStore.get(collectionName) == undefined){      
        // Object that defines all the collections.
        var collections = {

          // Object that defines the 'people' collection.
                userAgreement : {

            // Object that defines the Search Fields for the 'people' collection.
            searchFields : {someFlag: 'boolean'}
          }
        };

        // Optional options object.
        var options = {
          localKeyGen : false
        };

        WL.JSONStore.init(collections, options)

        .then(function () {
          var data = [{someFlag: false}];

          // Optional options for add.
          var addOptions = {

            // Mark data as dirty (true = yes, false = no), default true.
            markDirty: true
          };

          // Get an accessor to the people collection and add data.
          return WL.JSONStore.get(collectionName).add(data, addOptions);
        })

        .then(function (numberOfDocumentsAdded) {
            WL.Logger.debug ("Number Of Documents Added " +numberOfDocumentsAdded);
            alert ("Number Of Documents Added " +numberOfDocumentsAdded);
          // Add was successful.
        })

        .fail(function (errorObject) {
           // Handle failure for any of the previous JSONStore operations (init, add).
            WL.Logger.debug ("JSONStore Failed to add any document errorObject " +errorObject);
        });
    }

在 Android 中运行时，JSONStore 创建失败。

java.lang.NoClassDefFoundError: Failed resolution of: Lcom/worklight/jsonstore/util/JSONStoreUtil;
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at com.worklight.androidgap.jsonstore.dispatchers.BaseActionDispatcher.<init>(BaseActionDispatcher.java:44)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at com.worklight.androidgap.jsonstore.dispatchers.BaseDatabaseActionDispatcher.<init>(BaseDatabaseActionDispatcher.java:29)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at com.worklight.androidgap.jsonstore.dispatchers.AllDirtyActionDispatcher.<init>(AllDirtyActionDispatcher.java:36)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at com.worklight.androidgap.plugin.StoragePlugin.initialize(StoragePlugin.java:59)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at org.apache.cordova.CordovaPlugin.privateInitialize(CordovaPlugin.java:50)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at org.apache.cordova.PluginManager.getPlugin(PluginManager.java:195)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at org.apache.cordova.PluginManager.exec(PluginManager.java:141)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at org.apache.cordova.CordovaBridge.jsExec(CordovaBridge.java:61)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at org.apache.cordova.ExposedJsApi.exec(ExposedJsApi.java:40)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at org.chromium.base.SystemMessageHandler.nativeDoRunLoopOnce(Native Method)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at org.chromium.base.SystemMessageHandler.handleMessage(SystemMessageHandler.java:37)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:102)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at android.os.Looper.loop(Looper.java:135)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err:     at android.os.HandlerThread.run(HandlerThread.java:61)
    01-08 13:34:03.962 12289-12425/com.DCSSMobileApp W/System.err: Caused by: java.lang.ClassNotFoundException: Didn't find class "com.worklight.jsonstore.util.JSONStoreUtil" on path: DexPathList[[zip file "/data/app/com.DCSSMobileApp-2/base.apk"],nativeLibraryDirectories=[/data/app/com.DCSSMobileApp-2/lib/arm, /vendor/lib, /system/lib]]
    01-08 13:34:03.964 12289-12425/com.DCSSMobileApp W/System.err:     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    01-08 13:34:03.964 12289-12425/com.DCSSMobileApp W/System.err:     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
    01-08 13:34:03.964 12289-12425/com.DCSSMobileApp W/System.err:     at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
    01-08 13:34:03.964 12289-12425/com.DCSSMobileApp W/System.err:  ... 14 more
    01-08 13:34:03.964 12289-12425/com.DCSSMobileApp W/System.err:  Suppressed: java.lang.ClassNotFoundException: com.worklight.jsonstore.util.JSONStoreUtil
    01-08 13:34:03.965 12289-12425/com.DCSSMobileApp W/System.err:     at java.lang.Class.classForName(Native Method)
    01-08 13:34:03.965 12289-12425/com.DCSSMobileApp W/System.err:     at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
    01-08 13:34:03.965 12289-12425/com.DCSSMobileApp W/System.err:     at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
    01-08 13:34:03.965 12289-12425/com.DCSSMobileApp W/System.err:     at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
    01-08 13:34:03.965 12289-12425/com.DCSSMobileApp W/System.err:      ... 15 more
    01-08 13:34:03.965 12289-12425/com.DCSSMobileApp W/System.err:  Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

Answer 1

终于搞定了。我发现 jsonstore.jar 未包含在我的 Android 项目库中，这导致了此错误。

Answer 2

我正在使用与 cmets 中提到的相同的构建，并且能够成功运行 JSONStore 而不会遇到此错误。

1. 创建新的 Hybrid 应用并添加 Android 环境
2. 添加了 JSONStore 可选功能

3. 在common/js/main.js中添加如下代码>wlCommonInit()：

   function wlCommonInit(){
       var collectionName = 'people';
   
       // Object that defines all the collections.
       var collections = {
           // Object that defines the 'people' collection.
           people : {
               // Object that defines the Search Fields for the 'people' collection.
              searchFields : {name: 'string', age: 'integer'}
           }
       };
   
       // Optional options object.
       var options = {
           // Optional username, default 'jsonstore'.
           username : 'carlos',
   
           // Optional password, default no password.
           password : '123',
   
           // Optional local key generation flag, default false.
           localKeyGen : false
       };
   
       WL.JSONStore.init(collections, options)
   
       .then(function () {
           alert ("success");
       });
   }
   

我在 Android 模拟器中启动了应用程序并显示了警报。