diff --git a/include/dbManager.h b/include/dbManager.h
index 625eda0..6c289c8 100644
--- a/include/dbManager.h
+++ b/include/dbManager.h
@@ -21,7 +21,7 @@ public:
     QStringList conncetions();//获取所有链接名称
 
 signals:
-    void errorOccurred(const QString& strConnectionName, const QSqlError& error); //错误信息信号
+    void errorOccurred(const QString& strConnectionName, const QString& error); //错误信息信号
     void connectionStatusChanged(const QString& strConnectionName, bool bConnected);
 
 private:
diff --git a/include/mainwindow.h b/include/mainwindow.h
index 5376e84..2307566 100644
--- a/include/mainwindow.h
+++ b/include/mainwindow.h
@@ -54,7 +54,7 @@ private slots:
     void onActionTrigger_removeModel();
 
     void onSIG_addConnection(DatabaseConfig&);
-    void onSIG_errorFromDBManger(const QString& strConnectionName, const QSqlError& error);
+    void onSIG_errorFromDBManger(const QString& strConnectionName, const QString& error);
     void onSIG_errorFormSQLExecutor(const QString& error);
     void onSIG_connectionStatusChanged(const QString& strConnectionName, bool bConnected);
     void onSIG_addModel(Model&);
diff --git a/source/dbManager.cpp b/source/dbManager.cpp
index 842cc53..f149290 100644
--- a/source/dbManager.cpp
+++ b/source/dbManager.cpp
@@ -33,7 +33,7 @@ bool DatabaseManager::addDatabase(const DatabaseConfig& config)
                         //QString("Connection name '%1' already exists").arg(config.strConnectionName),
                         QString::fromWCharArray(L"已存在同名的链接: '%1'").arg(config.strConnectionName),
                         QSqlError::ConnectionError);
-        emit errorOccurred(config.strConnectionName, error);
+        emit errorOccurred(config.strConnectionName, error.databaseText());
         return false;
     }
 
@@ -45,7 +45,7 @@ bool DatabaseManager::addDatabase(const DatabaseConfig& config)
             QSqlError error(QString::fromWCharArray(L"配置信息错误"),
                             QString::fromWCharArray(L"'%1' 具有相同配置信息").arg(c.strConnectionName),
                             QSqlError::ConnectionError);
-            emit errorOccurred(config.strConnectionName, error);
+            emit errorOccurred(config.strConnectionName, error.databaseText());
             return false;
         }
     }
@@ -62,7 +62,7 @@ bool DatabaseManager::connect(const QString& strConnectionName)
         QSqlError error(QString::fromWCharArray(L"配置信息错误"),
                         QString::fromWCharArray(L"没有找到该链接的配置信息"),
                         QSqlError::ConnectionError);
-        emit errorOccurred(strConnectionName, error);
+        emit errorOccurred(strConnectionName, error.databaseText());
         LOG_ERROR("DB", QString("Connection failed: %1 due 2%").arg(strConnectionName).arg("no configuration information"));
         return false;
     }
@@ -77,11 +77,11 @@ bool DatabaseManager::connect(const QString& strConnectionName)
 
     if(!db.open())
     {
-        LOG_ERROR("DB", QString("DB: %1 open failed. connectionName: %2. error: %2")
+        LOG_ERROR("DB", QString("DB: %1 open failed. connectionName: %2. error: %3")
                             .arg(config.strDBName)
                             .arg(strConnectionName)
                             .arg(db.lastError().databaseText()));
-        emit errorOccurred(strConnectionName, db.lastError());
+        emit errorOccurred(strConnectionName, QString::fromWCharArray(L"数据库打开失败，详情可见日志文件"));
         QSqlDatabase::removeDatabase(strConnectionName);
         return false;
     }
diff --git a/source/mainwindow.cpp b/source/mainwindow.cpp
index 2e99c5a..bb96485 100644
--- a/source/mainwindow.cpp
+++ b/source/mainwindow.cpp
@@ -199,10 +199,10 @@ void MainWindow::onSIG_addConnection(DatabaseConfig& config)
     m_pDBStrutureModel->addConnection(config.strConnectionName, config.strDBType);
 }
 
-void MainWindow::onSIG_errorFromDBManger(const QString& strConnectionName, const QSqlError& error)
+void MainWindow::onSIG_errorFromDBManger(const QString& strConnectionName, const QString& error)
 {
-    m_lastSqlError = error;
-    showMessageDialog(type_warning, QString::fromWCharArray(L"错误"),error.databaseText());
+    //m_lastSqlError = error;
+    showMessageDialog(type_warning, QString::fromWCharArray(L"错误"),error);
 }
 
 void MainWindow::onSIG_errorFormSQLExecutor(const QString& error)