Question

您好我正在创建自己的内容提供商，这是创建代码的数据库：

 public static final Uri CONTENT_URI = 
 Uri.parse("content://"+ PROVIDER_NAME + "/user");

 public static final String _ID = "userid";
 public static final String Name = "name";
 public static final String Email_id= "email";
 public static final String Login_id = "login_id";
 public static final String Password = "password";
 public static final String Phonenumber = "phonenumber";
 public static final String Address = "address";

 private static final String DATABASE_CREATE =
 "create table " + DATABASE_TABLE + 
 " (userid integer primary key autoincrement,name text not null"+
 " email text not null,login_id text not null,password text not null"+
  "phonenumber text not null,address text not null);";

插入方法如下

  public Uri insert(Uri uri, ContentValues values) {

      long rowID = userDB.insert(
         DATABASE_TABLE, null, values);


      if (rowID>0)
      {
         Uri _uri = ContentUris.withAppendedId(CONTENT_URI, rowID);
         getContext().getContentResolver().notifyChange(_uri, null);    
         return _uri;                
      }

并使用下面的代码

来设置值

 values.put("name",ame);
 values.put("email",Email);
 values.put("login_id",Login);
 values.put("phonenumber",val1);
 values.put("address",Address);
 Uri uri=getContentResolver().insert(Uri.parse("content://"+PROVIDER_NAME+"/user"),values);       
      throw new SQLException("Failed to insert row into " + uri);
   }
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
   }

我收到以下错误。

Error inserting name=qwe
android.database.sqlite.SQLiteConstraintException: error code 19: constraint failed
at android.database.sqlite.SQLiteStatement.native_execute(Native Method)
at android.content.ContentProvider$Transport.insert(ContentProvider.java:150)
at com.example.contentprovider.implement.insert(implement.java:128)
Uncaught remote exception!  (Exceptions are not yet supported across processes.)
android.database.SQLException: Failed to insert row into content://net.learn2develop.provider.user/user
at com.example.contentprovider.implement.insert(implement.java:138)

还有一些......

帮帮我......

Answer 1

SQLiteConstraintException

这意味着您违反了数据库约束（例如外键）。我们无法从您发布的数据中知道哪一个。

Answer 2

我认为contentvalues没有password的键值对，而你明确表示密码在oncreate中不应为null。这可能是原因

SQLException无法将行插入内容（...）

2 个答案: