使用pinyin4j的问题_pinyin4j 协议有问题-优快云博客

本文链接：https://blog.youkuaiyun.com/wangpanbaoding/article/details/30029637

本文探讨了使用Pinyin4j库时遇到的NullPointerException错误，并提供了导致问题的根本原因及解决方案。通过深入分析日志信息，发现错误源在于缺少一个关键的配置文件unicode_to_hanyu_pinyin.txt，该文件位于asserts目录下而非预期的res目录。本文旨在为遇到类似问题的开发者提供帮助，避免资源查找误区。

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06-10 17:13:45.626 W/dalvikvm(10355): Exception Ljava/lang/NullPointerException; thrown while initializing Lnet/sourceforge/pinyin4j/ChineseToPinyinResource$ChineseToPinyinResourceHolder;
06-10 17:13:45.626 D/AndroidRuntime(10355): Shutting down VM
06-10 17:13:45.626 W/dalvikvm(10355): threadid=1: thread exiting with uncaught exception (group=0x40c1fac8)
06-10 17:13:45.636 E/AndroidRuntime(10355): FATAL EXCEPTION: main
06-10 17:13:45.636 E/AndroidRuntime(10355): java.lang.ExceptionInInitializerError
06-10 17:13:45.636 E/AndroidRuntime(10355):    at net.sourceforge.pinyin4j.ChineseToPinyinResource.getInstance(ChineseToPinyinResource.java:170)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at net.sourceforge.pinyin4j.PinyinHelper.getUnformattedHanyuPinyinStringArray(Unknown Source)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at net.sourceforge.pinyin4j.PinyinHelper.getFormattedHanyuPinyinStringArray(Unknown Source)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at net.sourceforge.pinyin4j.PinyinHelper.toHanyuPinyinStringArray(Unknown Source)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.deskclock.worldtime.PinyinUtil.charToPinyin(PinyinUtil.java:83)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.deskclock.worldtime.PinyinUtil.stringToPinyin(PinyinUtil.java:54)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.deskclock.worldtime.PinyinUtil.stringToPinyin(PinyinUtil.java:21)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.deskclock.worldtime.WorldTimeSearchActivity.searchByChar(WorldTimeSearchActivity.java:208)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.deskclock.worldtime.WorldTimeSearchActivity$2.onQueryTextChange(WorldTimeSearchActivity.java:153)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at amigo.widget.AmigoSearchView.onTextChanged(AmigoSearchView.java:1207)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at amigo.widget.AmigoSearchView.access$1700(AmigoSearchView.java:92)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at amigo.widget.AmigoSearchView$10.onTextChanged(AmigoSearchView.java:1694)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.widget.TextView.sendOnTextChanged(TextView.java:7234)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.widget.TextView.handleTextChanged(TextView.java:7293)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:8883)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.text.SpannableStringBuilder.sendTextChanged(SpannableStringBuilder.java:962)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:496)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:435)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:30)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:672)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.view.inputmethod.BaseInputConnection.commitText(BaseInputConnection.java:196)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.internal.widget.EditableInputConnection.commitText(EditableInputConnection.java:183)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:279)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:77)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.os.Handler.dispatchMessage(Handler.java:99)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.os.Looper.loop(Looper.java:137)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at android.app.ActivityThread.main(ActivityThread.java:5127)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at java.lang.reflect.Method.invokeNative(Native Method)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at java.lang.reflect.Method.invoke(Method.java:511)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:845)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at dalvik.system.NativeStart.main(Native Method)
06-10 17:13:45.636 E/AndroidRuntime(10355): Caused by: java.lang.NullPointerException: in == null
06-10 17:13:45.636 E/AndroidRuntime(10355):    at java.util.Properties.load(Properties.java:246)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at net.sourceforge.pinyin4j.ChineseToPinyinResource.initializeResource(ChineseToPinyinResource.java:85)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at net.sourceforge.pinyin4j.ChineseToPinyinResource.<init>(ChineseToPinyinResource.java:68)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at net.sourceforge.pinyin4j.ChineseToPinyinResource.<init>(ChineseToPinyinResource.java:37)
06-10 17:13:45.636 E/AndroidRuntime(10355):    at net.sourceforge.pinyin4j.ChineseToPinyinResource$ChineseToPinyinResourceHolder.<clinit>(ChineseToPinyinResource.java:179)

06-10 17:13:45.636 E/AndroidRuntime(10355): ... 32 more

这阵子用到pinyin4j的jar包，但是总是报这个错误，能看出似乎是因为少一个文件，但是一直在res目录找相关的资源，没有；终于知道了，是有一个名为unicode_to_hanyu_pinyin.txt的文件放在了asserts下面。

头疼了一天，百度了好长时间，没有类似的问题解决方法。也许还会有很多人遇到此类问题，在这里贴出来与大家共享。