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后台代码对iBatis配置文件中具体的sql语句的调用实现(被封装的增删改查)

时间:2015-01-27 17:59:09      阅读:357      评论:0      收藏:0      [点我收藏+]

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using IBatisNet.Common.Exceptions;

using IBatisNet.DataAccess;
using IBatisNet.DataAccess.DaoSessionHandlers;
using IBatisNet.DataAccess.Interfaces;

using IBatisNet.DataMapper;
using IBatisNet.DataMapper.Commands;
using IBatisNet.DataMapper.Configuration.ParameterMapping;
using IBatisNet.DataMapper.MappedStatements;
using IBatisNet.DataMapper.Scope;

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Data;
using System.Text;


namespace Core
{
    public class IbatisDaoExceptionHelper
    {
        // Methods
        public IbatisDaoExceptionHelper()
        {

        }   
        public static string GetStatementDetail(ISqlMapper sqlMap, string statementName, object parameterObject)
        {
            try
            {
                StringBuilder builder = new StringBuilder();
                StringBuilder builder2 = new StringBuilder();
                MappedStatement mappedStatement = (MappedStatement)sqlMap.MappedStatements[statementName];
                ISqlMapSession localSession = sqlMap.LocalSession;
                RequestScope request = mappedStatement.Statement.Sql.GetRequestScope(mappedStatement, parameterObject, localSession);
                IDbCommand command = new DbCommandDecorator(localSession.CreateCommand(mappedStatement.Statement.CommandType), request);
                string preparedSql = request.PreparedStatement.PreparedSql;
                StringCollection dbParametersName = request.PreparedStatement.DbParametersName;
                IDbDataParameter[] dbParameters = request.PreparedStatement.DbParameters;
                int count = dbParametersName.Count;
                for (int i = 0; i < count; i++)
                {
                    IDbDataParameter parameter = dbParameters[i];
                    ParameterProperty mapping = request.ParameterMap.GetProperty(i);
                    builder.Append(parameter.ParameterName);
                    builder.Append("=[");
                    builder2.Append(parameter.ParameterName);
                    builder2.Append("=[");
                    builder.Append(mapping.PropertyName);
                    builder.Append(",");
                    IDbDataParameter dataParameter = command.CreateParameter();
                    request.ParameterMap.SetParameter(mapping, dataParameter, parameterObject);
                    if (dataParameter.Value == DBNull.Value)
                    {
                        builder.Append("null");
                        builder.Append("], ");
                        builder2.Append("System.DBNull, null");
                        builder2.Append("], ");
                    }
                    else
                    {
                        builder.Append(dataParameter.Value.ToString());
                        builder.Append("], ");
                        builder2.Append(dataParameter.DbType.ToString());
                        builder2.Append(", ");
                        builder2.Append(dataParameter.Value.GetType().ToString());
                        builder2.Append("], ");
                    }
                }
                string str2 = "Statement Id: [" + mappedStatement.Statement.Id + "] Parameters: [0]";
                string str3 = "";
                if (builder2.Length != 0)
                {
                    str2 = "Statement Id: [" + mappedStatement.Statement.Id + "] Parameters: [" + builder.ToString(0, builder.Length - 2) + "]";
                    str3 = "Statement Id: [" + mappedStatement.Statement.Id + "] Types: [" + builder2.ToString(0, builder2.Length - 2) + "]";
                }
                return (preparedSql + Environment.NewLine + str2 + (!string.IsNullOrEmpty(str3) ? (Environment.NewLine + str3) : ""));
            }
            catch
            {
            }
            return "can‘t get the sql error info";
        }

    }
    [Serializable]//可序列化
    public class BaseSqlMapDao1 : IDao
    {
        protected const int PAGE_SIZE = 4;

        protected string sqlMapNamespace;

        public BaseSqlMapDao1()
        {

        }

        protected string WrapStatementName(string statementName)
        {
            return (this.sqlMapNamespace + "." + statementName);
        }
        protected ISqlMapper GetLocalSqlMap()
        {
            SqlMapDaoSession localDaoSession = (SqlMapDaoSession)this.DaoManager.LocalDaoSession;
            return localDaoSession.SqlMap;
        }

        public IDaoManager DaoManager { get; set; }
        protected object ExecuteDelete(string statementName, object parameterObject)
        {
            object obj2;
            ISqlMapper localSqlMap = this.GetLocalSqlMap();
            try
            {
                obj2 = localSqlMap.Delete(statementName, parameterObject);
            }
            catch (Exception exception)
            {
                string str = IbatisDaoExceptionHelper.GetStatementDetail(localSqlMap, statementName, parameterObject);
                IBatisNetException exception2 = new IBatisNetException("Error executing delete ‘" + statementName + "‘.  Cause: " + exception.Message, exception);
                exception2.Data.Add("sqlTrace", str);
                throw exception2;
            }
            return obj2;
        }

        protected object ExecuteInsert(string statementName, object parameterObject)
        {
            object obj2;
            ISqlMapper localSqlMap = this.GetLocalSqlMap();
            try
            {
                obj2 = localSqlMap.Insert(statementName, parameterObject);
            }
            catch (Exception exception)
            {
                string str = IbatisDaoExceptionHelper.GetStatementDetail(localSqlMap, statementName, parameterObject);
                IBatisNetException exception2 = new IBatisNetException("Error executing insert ‘" + statementName + "‘.  Cause: " + exception.Message, exception);
                exception2.Data.Add("sqlTrace", str);
                throw exception2;
            }
            return obj2;
        }

        protected int ExecuteUpdate(string statementName, object parameterObject)
        {
            int num;
            ISqlMapper localSqlMap = this.GetLocalSqlMap();
            try
            {
                num = localSqlMap.Update(statementName, parameterObject);
            }
            catch (Exception exception)
            {
                string str = IbatisDaoExceptionHelper.GetStatementDetail(localSqlMap, statementName, parameterObject);
                IBatisNetException exception2 = new IBatisNetException("Error update  ‘" + statementName + "‘.  Cause: " + exception.Message, exception);
                exception2.Data.Add("sqlTrace", str);
                throw exception2;
            }
            return num;
        }


        protected int ExecuteUpdate(string statementName, object parameterObject)
        {
            int num;
            ISqlMapper localSqlMap = this.GetLocalSqlMap();
            try
            {
                num = localSqlMap.Update(statementName, parameterObject);
            }
            catch (Exception exception)
            {
                string str = IbatisDaoExceptionHelper.GetStatementDetail(localSqlMap, statementName, parameterObject);
                IBatisNetException exception2 = new IBatisNetException("Error update  ‘" + statementName + "‘.  Cause: " + exception.Message, exception);
                exception2.Data.Add("sqlTrace", str);
                throw exception2;
            }
            return num;
        }


        protected IList<T> ExecuteQueryForList<T>(string statementName, object parameterObject)
        {
            IList<T> list;
            ISqlMapper localSqlMap = this.GetLocalSqlMap();
            try
            {
                list = localSqlMap.QueryForList<T>(statementName, parameterObject);
            }
            catch (Exception exception)
            {
                string str = IbatisDaoExceptionHelper.GetStatementDetail(localSqlMap, statementName, parameterObject);
                IBatisNetException exception2 = new IBatisNetException("Error executing query ‘" + statementName + "‘ for list.  Cause: " + exception.Message, exception);
                exception2.Data.Add("sqlTrace", str);
                throw exception2;
            }
            return list;
        }
    }
}

 

后台代码对iBatis配置文件中具体的sql语句的调用实现(被封装的增删改查)

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原文地址:http://www.cnblogs.com/slu182/p/4253252.html

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