宗悠然:Qt开源报表limereport备忘录

你的名字 2022-03-17 06:20 647阅读 0赞

开源报表limereport

1.记住connection对话框里面，database填写 数源的名称，不是数据库的名称

2.注意 databand 别忘了填写写数据源名称 zfg

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NpYmlyZW4yMDEx_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NpYmlyZW4yMDEx_size_16_color_FFFFFF_t_70 1][]

查看代码看看：

bool DataSourceManager::initAndOpenDB(QSqlDatabase& db, ConnectionDesc& connectionDesc){
    
        bool connected = false;
        db.setHostName(replaceVariables(connectionDesc.host()));
        db.setUserName(replaceVariables(connectionDesc.userName()));
        db.setPassword(replaceVariables(connectionDesc.password()));
    
        if (!connectionDesc.keepDBCredentials() && m_dbCredentialsProvider){
            if (!m_dbCredentialsProvider->getUserName(connectionDesc.name()).isEmpty())
                db.setUserName(m_dbCredentialsProvider->getUserName(connectionDesc.name()));
            if (!m_dbCredentialsProvider->getPassword(connectionDesc.name()).isEmpty())
                db.setPassword(m_dbCredentialsProvider->getPassword(connectionDesc.name()));
        }
    
        QString dbName = replaceVariables(connectionDesc.databaseName());
        if (connectionDesc.driver().compare("QSQLITE")==0){//对于sqlite数据库
            if (!defaultDatabasePath().isEmpty()){
                dbName = !QFileInfo(dbName).exists() ?
                        defaultDatabasePath()+QFileInfo(dbName).fileName() :
                        dbName;
            }
            if (QFileInfo(dbName).exists()){
                db.setDatabaseName(dbName);
            } else {
                setLastError(tr("Database \"%1\" not found").arg(dbName));
                return false;
            }
        } 
          else {
            db.setDatabaseName(dbName);
        }
    
        connected=db.open();
        if (!connected) setLastError(db.lastError().text());
        return  connected;
    }

分析源代码后，发现，直接在database里面写链接字符串:

DRIVER=\{SQL SERVER\};SERVER=192.168.1.42;Uid=sa;Pwd=woaini;DATABASE=Northwind

也是可以的，如下图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NpYmlyZW4yMDEx_size_16_color_FFFFFF_t_70 2][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NpYmlyZW4yMDEx_size_16_color_FFFFFF_t_70]: /images/20220317/3d224f4fb80545b1b3cb2d765c2201c3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NpYmlyZW4yMDEx_size_16_color_FFFFFF_t_70 1]: /images/20220317/90372a413a284456baba33fc9d3210bd.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NpYmlyZW4yMDEx_size_16_color_FFFFFF_t_70 2]: /images/20220317/abf5d0268ed34649941d05ffd212f6c2.png