安卓7.1 -在MobileFirst上部署JSONStore混合应用程序时出现的问题

Question

我正在尝试使用JSONStore来满足其中一个需求。

由于它是混合应用程序，因此我通过以下步骤对其进行了配置

使用应用程序描述符编辑器，打开文件Application - Descriptor ptor.xml单击Design选项卡。在概述下，展开应用程序您的应用程序名称。单击可选功能。单击Add。选择JSONStore。单击Ok。在Project Explorer视图中，右键单击以应用程序名称为标题的文件夹。单击Run As (运行方式)。单击“在MobileFirst开发服务器上运行”。

下面是我用来在JSONStore中创建文档的示例代码。我遵循了这个documentation中给出的说明。

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);
        });
    }

当在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

我使用的是与注释中提到的版本相同的版本，并且能够在遇到此错误的情况下成功运行JSONStore。

Main.js创建一个新的混合应用，并添加了Android environment

• Added

1. 可选功能
2. 在common/js/ JSONStore .js>wlCommonInit()中添加了以下代码：

函数wlCommonInit(){ var collectionName = 'people'；//定义所有集合的对象。var collection ={ //定义'people‘集合的对象。people：{ //定义'people‘集合的搜索字段的对象。searchFields：{name：'string'，age：'integer'} }；//可选的options对象var options ={ //可选用户名，默认为'jsonstore‘。用户名：'carlos'，//可选密码，默认无密码。密码：'123'，//可选的本地密钥生成标志，默认为false。localKeyGen : false }；WL.JSONStore.init(集合，选项) .then(function () { alert ("success")；})；}

我在Android Emulator中启动了应用程序，并显示了警告。

Answer 2

终于让它工作了。我发现jsonstore.jar没有包含在我的安卓项目库中，这导致了这个错误。