我需要使用文本语音库。我决定使用https://responsivevoice.org/。集成非常容易,但是,由于我的项目使用GWT,因此-显然-并非如此简单。

这是我的Java代码,它是概念类的最小证明:

import com.google.gwt.core.client.Callback;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.ScriptInjector;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.*;

public class InverseVoiceTrainer extends SimplePanel implements ClickHandler {

    Button playBtn;

    public InverseVoiceTrainer() {
        ScriptInjector.fromUrl("https://code.responsivevoice.org/responsivevoice.js").setCallback(
                new Callback<Void, Exception>() {
                    @Override
                    public void onSuccess(Void result) {
                        GWT.log("ResponsiveVoiceJS loaded.");
                    }
                    @Override
                    public void onFailure(Exception reason) {
                        GWT.log("ResponsiveVoiceJS loading FAILED!");
                    }
                }).inject();

        playBtn = new Button("Play");
        playBtn.addClickHandler(this);
        this.add(playBtn);
    }

    @Override
    public void onClick(ClickEvent event) {
        GWT.log("Onclick pressed");
        playWord("This is a test message...");
    }


    public static native void playWord(String s) /*-{
        console.log("playWord - 1");
        responsiveVoice.speak(s);
        console.log("playWord - 2");
    }-*/;
}


因此,查看控制台日志,我可以看到以下内容:

ResponsiveVoice r1.5.3
SuperDevModeLogger.java:71 ResponsiveVoiceJS loaded.
SuperDevModeLogger.java:71 Onclick pressed
InverseVoiceTrainer.java:40 playWord - 1
InverseVoiceTrainer.java:42 playWord - 2


这告诉我(a)ResponsiveVoice似乎已正确加载,并且(b)应该已播放声音。但是,我什么也没听到,而且音量是可以听到的。那么,这里出了什么问题?

最佳答案

好吧,这可能不是最佳答案,但对我有用。

首先,只需在托管html页面中链接responsivevoice.js即可:

<script type="text/javascript" language="javascript" src="https://code.responsivevoice.org/responsivevoice.js"></script>


然后删除代码的ScriptInjector部分。

最后的更改是在$wnd方法中添加playWord()

$wnd.responsiveVoice.speak(s);


经过测试。工作了。

10-08 16:55