Android ContentProvider批量插入数据
Android About 2,612 words操作类中使用provider批量插入
public void insertCategoryInfo(List<CategoryInfo> categoryList) {
ContentValues[] contentValues = new ContentValues[categoryList.size()];
for (int i = 0; i < categoryList.size(); i++) {
ContentValues value = new ContentValues();
value.put("colName", categoryList.get(i).colName);
value.put("colLogo", categoryList.get(i).colLogo);
value.put("colSeq", categoryList.get(i).colSeq);
value.put("colId", categoryList.get(i).colId);
value.put("recName", categoryList.get(i).recName);
value.put("operContent", categoryList.get(i).operContent);
contentValues[i] = value;
}
mResolver.bulkInsert(UnicastUri.YP_TABLE_CATEGORY_URI, contentValues);
}
复写bulkInsert方法
@Override
public int bulkInsert(Uri uri, ContentValues[] values) {
if (mDb == null) {
Log.d("zbj1123", "bulkInsert: mDb为空!");
return -1;
}
Log.d("zbj1123", "bulkInsert: 进入bulkInsert! values长度 : " + values.length);
int numValues = 0;
mDb.beginTransaction(); //开始事务
try {
//每次插入前都将之前的删除
String table = getTableName(uri);
if(table == null){
throw new IllegalArgumentException("UnSupported URI : " + uri);
}
mDb.execSQL("delete from " + table + ";");
//数据库操作
numValues = values.length;
for (int i = 0; i < numValues; i++) {
insert(uri, values[i]);
}
mDb.setTransactionSuccessful(); //别忘了这句 Commit
} finally {
mDb.endTransaction(); //结束事务
}
return numValues;
}
public String getTableName(Uri uri){
String tableName = null;
switch (uriMatcher.match(uri)){
case YP_TABLE_ENTERPRISE_URI_CODE :
tableName = DBProviderColumns.YP_TABLE_ENTERPRISE;
break;
case YP_TABLE_CATEGORY_URI_CODE :
tableName = DBProviderColumns.YP_TABLE_CATEGORY;
break;
case YP_TABLE_QUICK_URI_CODE :
tableName = DBProviderColumns.YP_TABLE_QUICK;
break;
case YP_TABLE_CITY_LIST_URI_CODE :
tableName = DBProviderColumns.YP_TABLE_CITY_LIST;
break;
case YP_TABLE_RECENT_CITY_URI_CODE :
tableName = DBProviderColumns.YP_TABLE_RECENT_CITY;
break;
case YP_TABLE_RECENT_SEARCH_URI_CODE :
tableName = DBProviderColumns.YP_TABLE_RECENT_SEARCH;
break;
case YP_TABLE_DATA_UPDATE_FREQUENCY_URI_CODE :
tableName = DBProviderColumns.YP_TABLE_DATA_UPDATE_FREQUENCY;
break;
}
return tableName;
}
Views: 4,542 · Posted: 2019-04-12
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