Caused by: java.lang.SecurityException: Permission Denial: reading com.androi...

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　在网络上找了一段代码运行一下，出现下面的错误：

1. 12-18 07:12:34.232: E/AndroidRuntime(23763): FATAL EXCEPTION: main
   
2. 12-18 07:12:34.232: E/AndroidRuntime(23763): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.comtacts.chuangheshiji/com.comtacts.chuangheshiji.MainActivity}: java.lang.SecurityException: Permission Denial: reading com.android.providers.contacts.ContactsProvider2 uri content://com.android.contacts/data/phones from pid=23763, uid=10036 requires android.permission.READ_CONTACTS
   
3. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
   
4. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
   
5. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.app.ActivityThread.access$2300(ActivityThread.java:125)
   
6. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
   
7. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.os.Handler.dispatchMessage(Handler.java:99)
   
8. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.os.Looper.loop(Looper.java:123)
   
9. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.app.ActivityThread.main(ActivityThread.java:4627)
   
10. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at java.lang.reflect.Method.invokeNative(Native Method)
    
11. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at java.lang.reflect.Method.invoke(Method.java:521)
    
12. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
    
13. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
    
14. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at dalvik.system.NativeStart.main(Native Method)
    
15. 12-18 07:12:34.232: E/AndroidRuntime(23763): Caused by: java.lang.SecurityException: Permission Denial: reading com.android.providers.contacts.ContactsProvider2 uri content://com.android.contacts/data/phones from pid=23763, uid=10036 requires android.permission.READ_CONTACTS
    
16. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.os.Parcel.readException(Parcel.java:1247)
    
17. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:160)
    
18. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:114)
    
19. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.content.ContentProviderProxy.bulkQueryInternal(ContentProviderNative.java:330)
    
20. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.content.ContentProviderProxy.query(ContentProviderNative.java:366)
    
21. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.content.ContentResolver.query(ContentResolver.java:245)
    
22. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at com.comtacts.chuangheshiji.MainActivity.getPhoneContacts(MainActivity.java:92)
    
23. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at com.comtacts.chuangheshiji.MainActivity.onCreate(MainActivity.java:68)
    
24. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
    
25. 12-18 07:12:34.232: E/AndroidRuntime(23763):         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
    
26. 12-18 07:12:34.232: E/AndroidRuntime(23763):         ... 11 more
    
27. 
    

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看Log信息大家可以看知道是为什么了，是因为我们没在功能配置文件中添加读取还写入联系人的权限，所以解决这问题我只需要加入相应的权限即可
如果是需要添加读取的权限则是：

<manifest>....    <uses-permission android:name="android.permission.READ_CONTACTS" /></manifest>如果是要写入的权限则是：
<uses-permission android:name="android.permission.WRITE_CONTACTS" />