1, add the following code in Pom.xml project>build, let MAVEN environment support Mybatis-generator component
org.mybatis.generator mybatis-generator-maven-plugin 1.3.2 < ;configuration> src/main/resources/generator.xml true true generate
This article will briefly introduce the INSERT, UPDATE, delete configuration and use, in the future will be the source of mybatis in-depth explanation.
Believe, see INSERT, UPDATE, Delete, we know its role, as the name implies, Myabtis as a
In recent project development, a lot of domain models have been used, (POJO refers only to setter/getter/tostring simple classes, including DO/DTO/BO/VO, etc.), and then encounters many scenarios where the model attributes are automatically
Write Association first, then write collection; this is determined by the dtd; ... > ... > Association > ... > >resultmap> MyBatis one-to-many, multi-pair Query when mapper order
The parameters of the MyBatis Mapper interface are generally an object, but what if it is not an object and has multiple parameters? Our first idea was to encapsulate the parameters into a java.util.Map type, and then write the key of the map on the
The mapping file is loaded via the mapper interface, which is important for the integration of the following SSM three Frameworks. So what is loading the mapping file via the mapper interface?We first look at the previous practice, in the global
EN "HTTP://IBATIS.APACHE.ORG/DTD/IBATIS-3-MAPPER.DTD" >
Resulttype= "" usecache= "true" flushcache= "true" timeout= "" fetchsize= ""Statementtype= "STATEMENT" resultsettype= "Forward_only" >StatementType can be set to
Before today, just heard mybatis, useless, has been used ibatis, at that time feel very simple, today the project used the mybatis,example of things, just took over, dizzy for a long time. Only now has learned how to generate classes and
The Insert method uses all properties as fields
@Test public
void Testinsert () {
user record=new User ();
Record.setname ("SanSan");
Use This.newUserMapper.insert (record) with all attributes as fields
;
}
The raw data storage:s3
Using Amazon S3 with the aws.net API part 1:introduction
Using Amazon S3 with the aws.net API part 2:code Basics
Using Amazon S3 with the aws.net API part 3:code Basics Cont ' d
Using Amazon S3 with the aws.net API part 4:working with folders in code
Using Amazon S3 with the aws.net API part 5:s3 in Big Data
Using Amazon S3 with the aws.net API part 6:s3 in Big Data II
Data Storage Alternative:dynamodb
Using Amazon
mentioned are some of the more important differences. Depending on your situation, using SQL database may be preferred, whereas in other cases nosql is the more obvious choice. When selecting a database, you should carefully consider the advantages and disadvantages of each database. One of the benefits of NoSQL is that there are many different types of databases to choose from, and each has its own use case:
Key-value Storage: DynamoDB
Great deal. I was supposed to update it yesterday. As a result, I was too excited to receive my new focus phone yesterday and forgot my business. Sorry!
Directory address for this book Note: http://www.cnblogs.com/mdyang/archive/2011/06/29/data-intensive-text-prcessing-with-mapreduce-contents.htmlIntroduction
Mapreduce is very powerful because of its simplicity. Programmers only need to prepare the following elements:
Input data
Mapper and reducer
A few weeks ago, elastic Beanstalk declared the configuration and management of Docker containers in the AWS Cloud. In this article, we use a simple sign-up form page application to understand the Docker deployment process, which uses the elastic Beanstalk python environment.about Registration Form Application
A few months ago, we had developed this application and posted it on our blog. There are 4 sections of video and an article "Using DynamoDB an
A few weeks ago, Elastic Beanstalk announced the configuration and management of Docker containers in the AWS Cloud. In this article, we use a simple Registration form page application to understand the Docker deployment process, which uses the elastic Beanstalk python environment.
about registering a form app
A few months ago, we've developed this app and posted it on blogs. There are 4 parts of the video and one article "Using DynamoDB and SNS wit
This article mainly introduces how to deploy Python applications on Docker. Docker is currently the most popular virtual machine and is being used by various cloud host service providers, for more information about how to configure and manage Docker containers on the AWS cloud, see The Elastic Beanstalk statement a few weeks ago. In this article, we use a simple registry form page application to understand the Docker deployment process. this form uses the Elastic Beanstalk Python environment.
A
Tutorial on deploying Python applications on Docker, dockerpython
Several weeks ago, Elastic Beanstalk declared that Docker containers were configured and managed on the AWS cloud. In this article, we use a simple registry form page application to understand the Docker deployment process. This form uses the Elastic Beanstalk Python environment.About Single Registry Application
A few months ago, we have developed this application and published it on our blog. There are 4 videos and an article "Us
Docker commit
Docker build
Docker build-t repo [: tag] is the same as above. You can specify a repo and an optional tag.
Docker build-
Docker port
Docker mounts the host machine directory to the docker container.
[Root @ linuxidc ~] # Docker run-t-I-v/root/convirt-install: /mnt/convirt docker.cn/docker/centos:centos5/bin/bash # mount the host directory to the container-t indicates that the Pseudo Terminal is allocated-I indicates that the host directory is run interactively-v indicates the
Reprinted from: yangguan. orgmapreduce-patterns-algorithms-and-use-cases translated from: highlyscalable. wordpress. in this article, com20120201mapreduce-patterns summarizes several common MapReduce models and algorithms on the Internet or in the paper, and systematically explains the differences between these technologies.
Reposted from: Workshop
Reposted from: Workshop. All descriptive text and code use the standard hadoop MapReduce model, including Mappers, CES, Combiners, Partitioners, and
First, provide the project structure:
Log4j. properties-log configuration file
DB. properties ---- connect to the database
Configure database connection Parameters
Mybatis/sqlmapconfig. xml --- mybatis core configuration file
Mybatis configuration item
Core configuration file of spring/applicationcontext. XML-à spring
Configure public content: data source and transaction management
Configure Dao in spring/applicationcontext-base-dao.xml à
Configure sqlsessionfactory and Dao (
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