Org. springframework. dao. invaliddataaccessapiusageexception: write operations are not allowed in read-only mode (flushmode. never/manual): Turn your session into flushmode. commit/auto or remove 'readonly' marker from transaction definition.
Solution:
Org. springframework. Orm. hibernate3.support. opensessioninviewfilter
Write operations are not allowed in read
The database is set master-slave mode main database is responsible for adding and deleting from the database is responsible for reading, but from the database read data from the specific how to implement? What problems should we pay attention to? Ask for advice
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The database is set master-slave mode main database is responsible for adding and d
basic concepts)
Entity name, explanation of entity, how entity is uniquely determined, details of parent entity
Trade name, interpretation of the transaction, information contained in the transaction, how a transaction is uniquely determined, all entity details, when the transaction is considered to have occurred, the life of the transaction
Configuration value, configuration entity, name and destination, representative value, data type, level, configuration value when you can mo
necessary at all! DriverObject->MajorFunction[IRP_MJ_CREATE] =IRPTEST_Dispatch;DriverObject->MajorFunction[IRP_MJ_READ]=IRPTEST_DISPATCH_READ;DriverObject->MajorFunction[IRP_MJ_WRITE]=IRPTEST_Dispatch;DriverObject->MajorFunction[IRP_MJ_CLEANUP]=IRPTEST_Dispatch;DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION]=IRPTEST_Dispatch;DriverObject->MajorFunction[IRP_MJ_SHUTDOWN]=IRPTEST_Dispatch;DriverObject->MajorFunction[IRP_MJ_SYSTEM_CONTROL]=IRPTEST_Dispatch;DriverObject->MajorFunction[IRP_MJ_
Take the simulation SPIs as an example:For other peripherals (UART, SPIM, I2s, i²c ... ) is a truth.When the MCU is written: write primarily to a register, which is the entrance to the peripheral (which is basically done and the logic is turned).Spis_tx_data = (i++);Otherwise the MCU will not initiate write operations, the corresponding enable signal will not be some, the address is.When the MCU reads: Mainly read a register, which is the exit of the
Solution for file read-only mode of USB flash disk in linux
I often use a USB flash drive to transmit files in ubuntu. Recently I don't know why, the USB flash drive can be used normally in windows, but the file becomes read-only in linux, unable to copy and paste. the method of searching online is relatively simple and has become more practical after changes. s
Tags: mysql ibdata1 read-writeToday, doing experiments in that Daoteng MySQL database, later found that the service could not be started, check the log error as follows:2015-01-07 17:48:54 9136 [ERROR] InnoDB:. \ibdata1 can ' t be opened in Read-write mode2015-01-07 17:48:54 9136 [ERROR] innodb:the system tablespace must be writable!2015-01-07 17:48:54 9136 [ERROR] Plugin ' InnoDB ' init function returned E
NTFS partition in the MAC is always read-only mount, dual operating systems, especially when you need to use the U disk, the need to manually umount mount, very troublesome, find some information, by modifying the/etc/fstab file is invalid, or using third-party software, non-requirements, Have no intention to search the following links:MAC OS x with NTFSWhich by modifying the system/sbin/mount_ntfs script can be very good to meet my needs (10.9 invali
1, the left mouse button Double click the computer Desktop Excel2013 The worksheet program icon, opens it to run. In the Open Excel2013 Sheet Program window, click the Open another workbook option in the left pane. As shown in the picture;
2, in the jump to the open page, click the "Computer"--> "browse" option command. As shown in the picture;
3. Then in the Open dialog box, locate the table of contents that holds the Excel worksheet and select the Excel worksheet. As shown in the
)Function.prototype.addMethod = function (NAME,FN) {THIS.PROTOTYPE[NAME]=FN;return this;}var Methods = function () {};Methods.addmethod (' CheckName ', function () {Verify Name return This}). Addmethod (' Checkemail ', function () {Verify Mailboxreturn This});But we can't use it right now, and we're going to create a new object by using the keyword new.var m = new Methods ();M.checkemail (). Checkemail ()Two doubts: 1, function method of adding methods The statement why is This[name], wh
Systempropertiesmodename property of the Propertyplaceholderconfigurer class is System_properties_mode_ Override this means that configuration information can be obtained from the parameters of the JVM virtual machine. The ${app_home} in the value of the configuration location can set different values depending on the environment, such as in the development environment, setting up the directory for the development environment, and the online environment configures the path of the line configura
as a key business entity, because the entire system is built around one or several core business entities, so we need to identify key business entities at the beginning of the system requirements. An infrastructure is the ability to support one or more required sets of requirements.Next is the functional domain portion of the system core. Writing a section for each initiator is an important way of functional domains. Define and write the sections according to different functions, and arrange th
remember (5) simple (6) difficult to allocate (7) flexible with other identifiers (8). The calculation formula requirement pattern is used to define how a particular value is calculated, or how to determine a value by a certain logical step, which should contain the following information: Numerical description, formula itself, interpretation of all variables used, calculation accuracy, applicability limitations, references, an example. The Data life requirement pattern is used to define how lon
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