/// <summary>
/// 把数据库信息填入从Csharp分析出的函数信息中
/// </summary>
/// <param name="DbStore">WebConfig中数据库相关的信息</param>
/// <param name="functionDataList">从Csharp中分析出的函数信息</param>
/// <returns>函数信息</returns>
public List <DbFunctionData> FillFunctionDataList(Dictionary <string, NFinal.DB.Coding.DataUtility> DbStore, List <DbFunctionData> functionDataList)
{
if (functionDataList.Count > 0)
{
for (int i = 0; i < functionDataList.Count; i++)
{
if (functionDataList[i].functionName == "QueryAll" || functionDataList[i].functionName == "QueryObject" ||
functionDataList[i].functionName == "QueryRandom" || functionDataList[i].functionName == "QueryRow" ||
functionDataList[i].functionName == "QueryTop" || functionDataList[i].functionName == "Page"
)
{
NFinal.DB.Coding.DataUtility dataUtility = NFinal.DB.Coding.DB.DbStore[functionDataList[i].connectionName];
SelectStatement selectStatement = new SelectStatement(functionDataList[i].sql, dataUtility);
//是否是简单的单表查询,及简单的自然连接
//if (selectStatement.IsSimpleSelect())
//{
// functionDataList[i] = FillFunctionData(DbStore, functionDataList[i]);
//}
//else
{
functionDataList[i] = selectStatement.GetFunctionData(functionDataList[i]);
}
}
else
{
functionDataList[i] = FillFunctionData(DbStore, functionDataList[i]);
}
}
}
return(functionDataList);
}
public void GetDB()
{
//获取WebConfig中的连接字符串信息
string configFileName = appRoot + "Web.config";
if (File.Exists(configFileName))
{
System.Xml.XmlDocument doc = new System.Xml.XmlDocument();
doc.Load(configFileName);
System.Xml.XmlNode root = doc.DocumentElement.SelectSingleNode("/configuration");
System.Xml.XmlNodeList nodeList = root.SelectNodes("connectionStrings/add[@connectionString]");
Frame.ConnectionStrings.Clear();
if (nodeList.Count > 0)
{
System.Xml.XmlElement ele = null;
foreach (System.Xml.XmlNode node in nodeList)
{
ele = node as System.Xml.XmlElement;
var connectionString = new NFinal.DB.ConnectionString();
connectionString.name = ele.Attributes["name"].Value;
connectionString.value = ele.Attributes["connectionString"].Value;
connectionString.provider = ele.Attributes["providerName"].Value;
if (connectionString.provider.ToLower().IndexOf("mysql") > -1)
{
connectionString.type = NFinal.DB.DBType.MySql;
}
else if (connectionString.provider.ToLower().IndexOf("sqlclient") > -1)
{
connectionString.type = NFinal.DB.DBType.SqlServer;
}
else if (connectionString.provider.ToLower().IndexOf("sqlite") > -1)
{
connectionString.type = NFinal.DB.DBType.Sqlite;
}
else if (connectionString.provider.ToLower().IndexOf("oracle") > -1)
{
connectionString.type = NFinal.DB.DBType.Oracle;
}
else
{
connectionString.type = NFinal.DB.DBType.Unknown;
}
Frame.ConnectionStrings.Add(connectionString);
}
}
}
//读取数据库信息
NFinal.DB.Coding.DataUtility dataUtility = null;
if (Frame.ConnectionStrings.Count > 0)
{
NFinal.DB.ConnectionString conStr;
NFinal.DB.Coding.DB.DbStore.Clear();
for (int i = 0; i < Frame.ConnectionStrings.Count; i++)
{
conStr = Frame.ConnectionStrings[i];
if (conStr.type == NFinal.DB.DBType.MySql)
{
dataUtility = new NFinal.DB.Coding.MySQLDataUtility(conStr.value);
dataUtility.GetAllTables(dataUtility.con.Database);
NFinal.DB.Coding.DB.DbStore.Add(conStr.name, dataUtility);
}
else if (conStr.type == NFinal.DB.DBType.Sqlite)
{
dataUtility = new NFinal.DB.Coding.SQLiteDataUtility(conStr.value);
dataUtility.GetAllTables(dataUtility.con.Database);
NFinal.DB.Coding.DB.DbStore.Add(conStr.name, dataUtility);
}
else if (conStr.type == NFinal.DB.DBType.SqlServer)
{
dataUtility = new NFinal.DB.Coding.SQLDataUtility(conStr.value);
dataUtility.GetAllTables(dataUtility.con.Database);
NFinal.DB.Coding.DB.DbStore.Add(conStr.name, dataUtility);
}
else if (conStr.type == NFinal.DB.DBType.Oracle)
{
#if NET2
#else
dataUtility = new NFinal.DB.Coding.OracleDataUtility(conStr.value);
dataUtility.GetAllTables(dataUtility.con.Database);
NFinal.DB.Coding.DB.DbStore.Add(conStr.name, dataUtility);
#endif
}
}
}
}
public SqlParser(NFinal.DB.Coding.DataUtility dataUtility)
{
this.dataUtility = dataUtility;
}
/// <summary>
/// 把数据库信息填入从Csharp分析出的函数信息中
/// </summary>
/// <param name="DbStore">数据库表信息</param>
/// <param name="functionData">从Csharp中分析出的函数信息</param>
/// <returns>完整的函数信息</returns>
public DbFunctionData FillFunctionData(Dictionary <string, NFinal.DB.Coding.DataUtility> DbStore, DbFunctionData functionData)
{
//查找出sql语句中用的是哪个数据库
NFinal.DB.Coding.DataUtility dataUtility = NFinal.DB.Coding.DB.DbStore[functionData.connectionName];
SqlParser sqlParser = new SqlParser(dataUtility);
SqlStatement sqlSatement = new SqlStatement("", dataUtility.dbType);
string sql = sqlSatement.GetSql(functionData.parameters[0]);
//转换子查询
functionData.sql = sqlSatement.GetIdInSql(sql);
//所@符号统一转为?或:号
functionData.sql = sqlSatement.FormatSql(functionData.sql);
List <SqlInfo> sqlInfos = sqlParser.Parse(sql);
SqlInfo sqlInfo = null;
functionData.hasSqlError = false;
bool hasTable = false;
bool hasField = false;
if (sqlInfos.Count > 0)
{
sqlInfo = sqlInfos[0];
//分析表名,查看此表名是否存在
if (sqlInfo.Tables.Count > 0)
{
functionData.tables = new List <DB.Coding.Table>();
DB.Coding.Table table = new DB.Coding.Table();
//循环sql语句中的表名
for (int i = 0; i < sqlInfo.Tables.Count; i++)
{
hasTable = false;
//循环数据库中的表名
for (int j = 0; j < dataUtility.tables.Count; j++)
{
//如果表名存在,则添加表
if (sqlInfo.Tables[i].name == dataUtility.tables[j].name)
{
functionData.tables.Add(dataUtility.tables[j]);
hasTable = true;
break;
}
}
//如果表名不存在,则证明sql语句有错误.
if (!hasTable)
{
functionData.hasSqlError = true;
functionData.sqlError = "表" + sqlInfo.Tables[i].name + "不存在!";
return(functionData);
}
}
}
}
//分析sql中的参数信息
functionData.sqlVarParameters = FillParameter(dataUtility.csTypeDic, functionData.tables, sqlInfo.sqlVarParameters);
//分析列信息
if (sqlInfos.Count > 0)
{
sqlInfo = sqlInfos[0];
if (sqlInfo.Columns.Count > 0)
{
functionData.fields = new List <DB.Coding.Field>();
DB.Coding.Field field = new DB.Coding.Field();
DB.Coding.Table table = new DB.Coding.Table();
for (int i = 0; i < sqlInfo.Columns.Count; i++)
{
//如果列中有表名
if (sqlInfo.Columns[i].tableName != string.Empty)
{
hasTable = false;
//查看表名是否存在于sql语句的表中,如果不存在,则视为出错
for (int j = 0; j < functionData.tables.Count; j++)
{
if (functionData.tables[j].name == sqlInfo.Columns[i].tableName)
{
table = functionData.tables[j];
hasTable = true;
break;
}
}
if (!hasTable)
{
functionData.hasSqlError = true;
functionData.sqlError = "表" + sqlInfo.Columns[i].tableName + "不存在";
return(functionData);
}
else
{
//查看是否使用了table.*
if (sqlInfo.Columns[i].name == "*")
{
//functionData.fields.AddRange(table.fields);
for (int k = 0; k < table.fields.Count; k++)
{
table.fields[k].structFieldName = table.fields[k].name;
functionData.fields.Add(table.fields[k]);
}
}
//如果使用了table.field
else
{
hasField = false;
//查看该field是否存在
for (int k = 0; k < table.fields.Count; k++)
{
if (sqlInfo.Columns[i].name == table.fields[k].name)
{
//查看是否有AsName
if (string.IsNullOrEmpty(sqlInfo.Columns[i].asName))
{
table.fields[k].structFieldName = sqlInfo.Columns[i].name;
}
else
{
table.fields[k].structFieldName = sqlInfo.Columns[i].asName;
}
functionData.fields.Add(table.fields[k]);
hasField = true;
}
}
if (!hasField)
{
functionData.hasSqlError = true;
functionData.sqlError = "在表" + table.name + "中,列" + sqlInfo.Columns[i].name + "不存在";
return(functionData);
}
}
}
}
//如果列中没有表名
else
{
hasField = false;
if (sqlInfo.Columns[i].name == "*")
{
for (int j = 0; j < functionData.tables.Count; j++)
{
for (int k = 0; k < functionData.tables[j].fields.Count; k++)
{
functionData.tables[j].fields[k].structFieldName = functionData.tables[j].fields[k].name;
functionData.fields.Add(functionData.tables[j].fields[k]);
}
}
}
else
{
//循环sql语句中所有表的所有列
for (int j = 0; j < functionData.tables.Count; j++)
{
for (int k = 0; k < functionData.tables[j].fields.Count; k++)
{
if (sqlInfo.Columns[i].name == functionData.tables[j].fields[k].name)
{
//查看是否有AsName
if (string.IsNullOrEmpty(sqlInfo.Columns[i].asName))
{
functionData.tables[j].fields[k].structFieldName = sqlInfo.Columns[i].name;
}
else
{
functionData.tables[j].fields[k].structFieldName = sqlInfo.Columns[i].asName;
}
functionData.fields.Add(functionData.tables[j].fields[k]);
hasField = true;
}
}
}
if (!hasField)
{
functionData.hasSqlError = true;
functionData.sqlError = "列" + sqlInfo.Columns[i].name + "不存在";
return(functionData);
}
}
}
}
}
}
return(functionData);
}
//语句分三部分,select+columns+fromTables
//select(?:\s+distinct|\s+top\s+[0-9]+|\s+top\s+[0-9]+\s+percent)?
//((?:\s+[^,\s]+)(?:\s+as\s+(?:[^,\s]+))?(?:\s*,\s*(?:[^,\s]+)(?:\s+as\s+(?:[^,\s]+))?)*)
//(?:\s+from((?:\s+[^,\s]+)(?:\s+as\s+(?:[^,\s]+))?(?:\s*,\s*(?:[^,\s]+)(?:\s+as\s+(?:[^,\s]+))?)*))?
//static string selectStatementReg = @"select(?:\s+distinct|\s+top\s+\S+|\s+top\s+\S+\s+percent)?((?:\s+[^,\s]+)(?:\s+as\s+(?:[^,\s]+))?(?:\s*,\s*(?:[^,\s]+)(?:\s+as\s+(?:[^,\s]+))?)*)(?:\s+from((?:\s+[^,\s]+)(?:\s+as\s+(?:[^,\s]+))?(?:\s*,\s*(?:[^,\s]+)(?:\s+as\s+(?:[^,\s]+))?)*))?";
public SelectStatement(string sql, NFinal.DB.Coding.DataUtility dataUtility)
: base(sql, dataUtility.dbType)
{
this.dataUtility = dataUtility;
}
