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) {e.printstacktrace (); Throw NewRuntimeException (e); }finally{session.close (); }Two. Paging QueryIn this internet age, hundreds of thousands of of the data is also very common things, every time the query load is very unrealistic. Therefore, do paging query, not only save the DB performance, bandwidth, smoothness, but also to improve the user experience.Hibernate's query class has two ways to help us achieve paged query purposes: setfirstresult (int num) and setmaxresults (int size); The for

); Iinputmethodmanager service = IInputMethodManager.Stub.asInterface (b); Minstance = New Inputmethodmanager (service, mainlooper); } return minstance; } } The client calls, such as the Getsystemservice () method in Contextimpl, are called as follows:Java code Class Contextimpl extends context{ @Override Public Object Getsystemservice (String name) { if (window_service.equals (name)) { //...... Omit the following n if,else if } Else if (input_method_service.equals (

XMPP series (3) --- get friends list, add friends, and xmpp friends list 1. Heartbeat detection and disconnection Reconnection Both the client and the server can set how often to send a heartbeat packet. If the other party does not return the correct pong information, the connection will be disconnected, and the reconnection function will be automatically added. If you write your own chat function, you have

product positioning under these two objectives is completely different. Let's talk about the core commercial secrets. Let's get started, huh, huh.Changes in user groups at different stages In the 10-year life cycle, different users are exposed at different stages, and another dimension is generated. Roughly as follows: 1. Fan users Without limitation, we agree with the product concept and even know the users of product developers. Consider the Product Style and connotation, and do not mind ease

: /* * function-defined type digestion. *///#@ @range/definedfunction{public Void visit (definedfunction func) {/* * in function definition, there are typeref in these places. 1. Type 2 of the return value. The type of the formal parameter 3. The code of the function body */Resolvefunctionheader (func); Visitstmt (Func.body ()); return null; The 1th line of the private void Resolvefuncti

/49/D5/wKioL1QbpNKDWXo_AAElnZLjV4U229.jpg "style =" float: none; "Title =" 14.png" alt = "wkiol1qbpnkdwxo_aaelnzljv4u229.jpg"/> Select "yes" to enable automatic installation of scala plug-in idea. 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M00/49/D3/wKiom1QbpLijqttNAAE3LTevJ5I077.jpg "style =" float: none; "Title =" 15.png" alt = "wkiom1qbplijqttnaae3ltevj5i077.jpg"/> In this case, it takes about 2 minutes to download and install the S

Save and run the source command to make the configuration file take effect. Step 3: Run idea and install and configure the idea Scala development plug-in: The official document states: Go to the idea bin directory: Run "idea. Sh" and the following page appears: Select "Configure" To Go To The idea configuration page: Select plugins To Go To The plug-in installation page: Click the "Install jetbrains plugin" option in the lower left corner t

MongoDB Series 3: MongoDB user permission operations After preliminary research on configuration and basic understanding, the following section describes MongoDB's user permission operations. Brief Introduction: Like all other databases, permission management is similar. Mongodb stores all user information in the admin database collection system. users and stores the user name, password, and database inform

WAS cluster series (3): Build a cluster: Step 1: prepare files, was Cluster Note: "pointing track" is "Click order", which is the effect after clicking Environment Project point Metrics WAS version 7.0 Operating System Windows 2008 Number of system digits 64bit Memory 2G WAS absolute path D: \ IBM \ WebSphere \ AppServer Step 1: Pr

' *;Reference: http://www.ttlsa.com/nginx/how-to-allow-cross-domain-ajax-requests-on-nginx/3. writing the PHP code⑴ get POST parameters via $_post Error_reporting (e_all^e_notice^e_warning);... .. ... ..$login = $_post[' UserAccount ');$volume = $_post[' volume ');... .. ... ..⑵ return JSON data ... .. ... ..$ret = Array ();if (' OK ' = = $resarr [0]) {$ret = [' success ' = ' tradesuccess '];}else{$ret = [' Error ' = ' tradefail '];}echo Json

/wKiom1fAmx6w05SuAAAq3EVP1BY390.png "title=" 014. PNG "alt=" Wkiom1famx6w05suaaaq3evp1by390.png "/>Commit and update operations in MyEclipseRight-click on the project or on a single file->team-> submit/Update/...650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M02/86/7D/wKioL1fAnSGQQDKaAADZluW561Q499.png "title=" 015. PNG "alt=" Wkiol1fansgqqdkaaadzluw561q499.png "/>Icons for use under Eclipse650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M02/86/7D/wKioL1fAnYGj0FytAABLsgIqVNg317.pn

Can we come up with a thread count function, that is, the first child thread output 1, the second child thread output 2, the third child thread output 3, ... It seems very simple to implement this function-each child thread increments and outputs a global variable.The code is as follows: Sub-thread Count #include But in fact, this is problematic, in fact, and the problem described in the previous a

=NewMongodb. Db (' Local ', Mongoserver,{safe:true}); functionTest () {Db.open (function(error,dbcollection) {if(Error) {Console.errro (error); Process.exit (1); } dbcollection.collection ("AA"). Insert ({name: "Hao"},function(error,item) {if(Error) {Console.error (error); Process.exit (1); } console.log ("Inserted"); Db.close (); }); }); } test (); There is a poolsize option in Server_options the default value is 5 db to provide this connection pool by default every time the request come

1 , first to cut the binary fileBecause it is on-line recovery, the binary file will also write the recovery process to the inside when recovering, so the binary file is cut firstShell >mysqladmin-h 127.0.0.1-uroot-poracle Flush-logCan see, originally only mysqlbin_test.000001, mysqlbin_test.000002, mysqlbin_test.000003, mysqlbin_ after cutting. TEST.000004, this will not affect the previous binaries at the time of recovery (reason: Because the backup file can only be restored to the backup poi

Original: Interpretation of ASP. 5 MVC6 Series (2): Initial knowledge ProjectInitial Knowledge ProjectOpen VS2015, create a Web project, select ASP. NET Web application, and in the pop-up window, select the ASP. 5 Website template to create the project, as shown below:As we can see, the Web forms\mvc\web API check box is not available at this time because a lot of changes have been made in ASP. NET 5, remo

principles: 1. Keep a certain distance between nodes on the same layer. 2. The parent node must be located at the center of all its child nodes. 3. The entire tree should be symmetric and balanced as much as possible. 4. The presentation of the same subtree should be as effective as possible. 5. The tree should save as much space as possible without violating the above rules. Graph Layout There are many wa

The friendly visual perception and stable and error-free performance come from our pursuit of aesthetics and comprehensive consideration. I have always enjoyed it from a technical point of view.This articleArticleIt is a must-have knowledge for Android Developers. It is not perfect but useful for everyone. This article is a supplement to the previous "android Learning Series (2) -- download in the notific

say, you can use some of the above application methods for any sub-module again.SummaryMost of the above methods can be used in combination. Generally, if you want to design a system, you may use loosely coupled expansion, private State, and sub-module. In addition, I did not mention performance issues here, but I think the Module mode is highly efficient, with less code and fast loading. The loosely coupled extension allows parallel loading, which improves the download speed. However, the init

=options[name]; //prevents infinite loops, similar to $.extend (A,{name:a}). So if a copy of a value is equal to target then the termination code continues to loop if(target = = =copy) { Continue; } //deep Copy and copy exist, and copy is either an object or an array if(Deep copy jquery.isplainobject (copy) | | (Copyisarray =jquery.isarray (copy))) ) { if(Copyisarray) {Copyisarray=false; Clone= src jquery.isarr

(20, 120, 250, 120) Pen.setstyle (QtCore.Qt.DotLine) qp.setpen (pen) qp.drawline (20, 160, 250, 160) Pen.setstyle (QtCore.Qt.DashDotDotLine) qp.setpen (pen) qp.drawline (20, 200, 250, 200) Pen.setstyle (QtCore.Qt.CustomDashLine) Pen.setdashpattern ([1, 4, 5, 4]) Qp.setpen (pen) qp.drawline (20, 240, 250, 240)Together, drawing.py is like this:#-*-coding:utf-8-*-"""Module implementing Drawing."""ImportSYS fromPyQt5ImportQtgui, Qtcore fromPyqt5.qtwidgetsImportQdialog, Qapplication fromUi_drawingIm