Mybatis generator is generated by append by default. Therefore, if you want to regenerate the code, delete the original file first.
Solution:
1: create a custom patch class.
Overwritexmlplugin. Java
Package COM. my. common. generator; import Java. util. list; import Org. mybatis. generator. API. generatedxmlfile; import Org. mybatis.
When I use mybatis to write the ing between a class and a data table, there are too many column names in the table and there are also many problems. It is complicated to write the corresponding column names and Class Object Attributes one by one.
To facilitate and reduce errors, you can use the code generator provided by mybatis to automatically generate xml ing files, models, maps, and other information for mybatis.
Mybatis official website to downlo
1. Synchronous expression of asynchronous operationThe effect of suspending execution of the generator function means that the asynchronous operation can be written in the yield statement and then executed later when the next method is called. This is actually equivalent to not having to write the callback function, because the subsequent operation of the asynchronous operation can be placed under the yield statement, anyway, wait until the next metho
directly into the topic, as the project was chosen using MAVEN to build, so chose to take advantage of the way Maven was built. (There is also a self-Baidu)First, add the plugin in Pom.xml plugin> groupId>Org.mybatis.generatorgroupId> Artifactid>Mybatis-generator-maven-pluginArtifactid> version>1.3.2version> Configuration> location of the configuration file -
1. List-Generated>>> [i**2 for I in range (10)][0, 1, 4, 9, 16, 25, 36, 49, 64, 81]This process takes elements from the range (10) list, calculates the square of the element, and then puts it in the other list2. The code in "1" can be written in this form>>> def f (x): return x**2 for in range[ 014964 Bayi]3. The number of elements in a tuple (list) is n, and a tuple (list) assigns values to n variables>>> a= >>> x,y,z=a>>> x1>>> y2> >> Z3>>> b=[1,2,3]>>> x1,y1,z1=b>>> x11>>> y12 >>> Z134.
List Builder# Common is the range () to create a list of numbers >>>[x*x for x in range (10)][0, 1, 4, 9, 16, 25, 36, 49, 64, 81]# back can also be added with a judgment statement >>>[ X*x for x in range (ten) if x%2 = = 0][0, 4, 16, 36, 64]# characters can also play this way >>> [M + N for m in ' ABC ' for n ' XYZ ' [' AX ', ' A Y ', ' AZ ', ' BX ', ' by ', ' BZ ', ' CX ', ' CY ', ' CZ '] Generator# Generator
Because the project that is currently ready to start uses mybatis, it is unavoidable to use the MyBatis Generator tool to generate map,entity directly from the database. However, in the use of the process, the original MyBatis generator have a lot of shortcomings, each time to start a separate start, not in eclipse through the plug-in startup; it is not possible to write database annotations to a file is th
Both the iterator and generator are unique concepts in Python. The iterator can be considered as a special object. Each time you call this object, it will return its next element. In terms of implementation, an iteratable object must be an object that defines the _ iter _ () method, and an iterator must define the _ iter _ () method and next () method () method object.
Example
Old rule: first run the following code:
def add(s, x): return s + xdef ge
1. What is a generatorWith list generation, we can create a list directly. However, with memory limitations, the list capacity is certainly limited. Also, creating a list of 1 million elements takes up a lot of storage space, and if we just need to access the first few elements, the vast majority of the space behind it is wasted. So, if the list element can be calculated according to an algorithm, can we continue to calculate the subsequent elements in the process of the loop? This eliminates th
GeneratorWith a list generation ( [x * x for x in range(10)] for example), we can create a list directly. However, with memory limitations, the list capacity is certainly limited. Also, creating a list of 1 million elements takes up a lot of storage space, and if we just need to access the first few elements, the vast majority of the space behind it is wasted.So, if the list element can be calculated according to an algorithm, can we continue to calculate the subsequent elements in the process o
One or three meta-expressionsTernary expressions, also known as If,else's compact form. The specific usage is as follows:def Max (A, b ): if a>B: return a else: return b def Max (A, b ): return if Else b The functions implemented by the above two functions are exactly the same. A If a>b else B in the second function is a ternary expression. The left is the value returned when the condition is true, the middle is the judging condition, and the right is the value of the co
Script Name: s random password generator _v2.63.ps1Script function: Generate random password. Each password character number, password number, save the location and so on can be customized.Script usage:The script is hard-coded, so you need to open the script and modify the following variables:Total number of generated passwords = 1000$ per password digit = 12$ Disk directory = ' e:\ script ps\log_ps\ '$ large file with drive letter = ' F:\ 'and save,
Original:
Rapidjson--c++ Fast JSON Parser and generator
time 2015-04-05 07:33:33 Open source China News original Http://www.oschina.net/p/rapidjson
April 18 Wuhan Source Chong will start registration, send Huawei Development Board
Rapidjson is a C + + fast JSON parser and generator that uses the Sax/dom style API design.
Example code:
Rapidjson/example/simpledom/simpledom.cpp '#include "R
1, three-dimensional expression#What is ternary expression ternary: three elementsx=1y=2ifX>y:Print(x)Else : Print(y)#becomes ternary expression:Hhh=xifX>yElseyPrint(HHH)#Simple and clear————————————————————————————————————defmax2 (x, y):ifX>y:returnxElse : returnyPrint(Max2 (1,5))#becomes ternary expression:defmax2 (x, y):returnXifX>yElseyPrint(Max2 (1,5))#Can see the ternary expression can be output with a line of the result is very simple!!!! 2. List Deduction formulal=[1,25,35,60,8
1. First install the generator globallysudo npm install-g generator-meanjs2. Create a path for the projectmkdir xmen CD Xmen3. Create an AppYo MeanjsFollow the prompts to enter the application name, description, keyword, whether to create a crud example:4. Run the appsudo node_env=development gruntRunning apps in a development environmentIf you are running with the production environment, you need to do it
Mybatis-generator automatically generate mapping profiles and CRUD operations
Project Example: Https://github.com/liangrui1988/mybaits-genconfig
Mybaits-genconfig
Mybaits generate automatic map configuration file jar
Two jar packages under Lib a MySQL link a mybaits provided by the build configuration with a jar configuration
Generatorconfig.xml configuration A look at all understand that the example
Go to directory Cmd:gen.bat run
Flash Web music MP3 player code builder.
Welcome to the Flash Web music MP3 player code builder.Flash Web MP3 player, which is the program that generates the player code, not the player.What's the use of this player?1. When you publish an article on a forum or blog, you need to cooperate with music (such as: Music commentary)Flash Web page MP3 player code generator can easily help you complete the task of adding.2, your forum or blog need to add musi
Song Zhongki wedding Photo Generator usage:
1, open the download address, into the Builder Web version!
2, enter the name, photos and other girls information!
3, the generation and Song Zhongki marriage license!
Song Zhongki marriage license Generation: http://5ea4bcdd9895.ih5.cn/idea/ris4x58/vxid_1/senderid_d0fb7fd8fd376419
Me and Song Zhongki wedding photo Builder Tutorial:
1. First, download open me and Song Zhongki wedding
To the users of micro-credit software to detailed analysis to share the micro-trust Friends Circle investment Migration Generator play.
Analytical sharing:
1. Open Small Series to your download address link, click to download the software, enter the user's name after entering
2. Choose the country you aspire to, there are three places in the United States, Australia, Japan, you choose
3. After the selection of a click can
Iterations, that is, repeating things many times, Python allows you to iterate over sequences, dictionaries, and other objects with a for loop. When other objects are iterated, you need to implement the __iter__ method in other objects.
The __iter__ method returns an iterator, which is the object with the next method. When the next method is called, the iterator returns its next value. If the next method is invoked, but the iterator has no value to return, a Stopiteration exception is thrown.
Im
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