Javax内容不可访问 [英] Javax content not accessible

问题描述

由于要导入此程序包，我可以使用Watson Services，因此在尝试运行android应用程序时出现运行时错误.

I have a runtime error when i try to run my android application, due to the importation of this package that allows me to use Watson Services.

'com.ibm.watson.developer_cloud:java-sdk:2.9.0'

实际上，当我使用与此软件包相关的内容时，出现的错误是:

In fact, when I use something related to this package, the error that appears is:

E/dalvikvm: Could not find class 'javax.naming.InitialContext', referenced from method com.ibm.watson.developer_cloud.util.CredentialUtils.getKeyUsingJNDI

，相应的堆栈跟踪为:

E/AndroidRuntime: FATAL EXCEPTION: main
Process: semantic.myapplication, PID: 29120
java.lang.VerifyError: com/ibm/watson/developer_cloud/util/CredentialUtils
at….

我一直在寻找此错误的真正问题，发现在出现错误的文件"CredentialUtils.java"中，无法识别这三个输入(无法解析符号):

I’ve looked for the real problem of this error and I’ve found that in the file "CredentialUtils.java" where the error appears, these three importations are not recognized (Cannot resolve symbols):

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

我使用Android Studio和最新版本的jdk(1.8.0.77).这些Java文件存在，我可以看到它们，但由于某些原因无法访问:无法导入javax.naming中的每个文件(以及其他文件夹).

I use Android Studio and the latest version of jdk (1.8.0.77). These java files exist, I can see them but for some reason are not accessible: the importation of every file in javax.naming (and also other folders) is not possible.

我该如何解决这个问题?我尝试导入一个包含javax.naming类的.jar文件，但无法正常工作.有没有办法使这些类可见?

How can I solve this problem? I’ve tried to import a .jar file including the javax.naming classes, but doesn’t work. Is there a way to make visible that classes?

任何帮助将不胜感激.谢谢！

Any help would be appreciated. Thanks!

推荐答案

我认为您使用的版本早于2.7.1.我无法重现您的问题，因此尝试使用其他配置，包括您的配置. 确保清理工作区并获取库的最新版本. 在您的build.gradle中，您应该拥有:

I think you are using a version older than 2.7.1. I'm unable to reproduce your problem and I tried with different configurations including yours. Make sure you clean your workspace and get the latest version of the library. In your build.gradle you should have:

compile 'com.ibm.watson.developer_cloud:java-sdk:2.9.0'

这是提交，可解决您的问题.该修补程序以2.7.1版本发布.

Here is the commit that fixed your issue. The fix was released in the 2.7.1 version.

这就是我所做的并且对我有用:

This is what I did and that worked for me:

在Android中使用Watson API的步骤，您应该:

1. 下载并安装Android Studio
2. 打开Android Studio
3. File > New > New Project.
4. 选择一个名称，然后单击next，next，next和Finish

5. 在<project-name>/app/build.gradle中添加:

1. Download and install Android Studio
2. Open Android Studio
3. File > New > New Project.
4. Pick a name and click next, next, next and Finish

5. In <project-name>/app/build.gradle add:

compile 'com.ibm.watson.developer_cloud:java-sdk:2.9.0'  

在MainActiviy.java末尾的MainActiviy.java中添加:

In MainActiviy.java at the end of onCreate(...) add:

Thread thread = new Thread(new Runnable(){
  @Override
  public void run() {
    try {
      SpeechToText service = new SpeechToText();
      service.setUsernameAndPassword("<username>", "<password>");
      System.out.println(service.getModels());
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
});

thread.start();

启动模拟器并查看控制台.您应该会看到类似

Start the simulator and look at the console. You should see a message like

I/CredentialUtils: JNDI string lookups is not available.

和语音转文本"模型列表.

and the Speech to Text model list.

I/System.out: [{
I/System.out:   "name": "en-US_NarrowbandModel",
I/System.out:   "rate": 8000
I/System.out: }, {
I/System.out:   "name": "pt-BR_BroadbandModel",
I/System.out:   "rate": 16000
I/System.out: }, {
I/System.out: .... more models here
I/System.out: }, {
I/System.out:   "name": "en-US_BroadbandModel",
I/System.out:   "rate": 16000
I/System.out: }]

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