PasswordCallback. SQL execution log, Druid provides different logfilter, can support common-logging, log4j and Jdklog, you can choose the corresponding logfilter as needed, monitor the database access you have applied.To extend JDBC, if you want to have programming requirements for the JDBC layer, you can easily write the JDBC layer extensions through the Filter-chain mechanism provided by Druid.
Project Address: Https://github.com/alibaba/druid
3.
Here is an article that is very clear: Spring boot multi-data source configuration and useHeterogeneous database multi-source supportFor example, in our project, we need support for MySQL, as well as a query for MongoDB.Entity classes declare @Entity relational database support types, declared @Document as MongoDB support types, and different data sources u
Use Maven to get detailed explanation of the first Spring Boot program, mavenspring
Preface
To learn a new technology, don't worry about its principles, procedures, how to organize code or something. Copy a demo directly from the official website or blog, and run it on your own. Then, you can easily understand the pile of explanations.
At present, there are a lot of articles on
After the last article, HelloWorld program we have created a hellcontroller, which contains a response to the JSON method, this article for the controller to do a bit more explanation.Recalling the previous article, we used @RestController annotations in the controller, which was introduced in Spring 4.0. Check the source to see that it contains @Controller and @ResponseBody annotations. We can understand it as an enhanced version of @Controller. Spec
; this.lastTaskInfo = new TaskInfo(this.currentTaskName, lastTime); if (this.keepTaskList) { this.taskList.add(this.lastTaskInfo); } ++this.taskCount; this.currentTaskName = null;}The timer listener stops and counts some task execution information.14. Output logging execution main class name, time informationif (this.logStartupInfo) { new StartupInfoLogger(this.mainApplicationClass) .logStarted(getApplicationLog(),
In the case of beginners spring boot , the official example is for us to inherit a spring spring-boot-starter-parent , the parent:parent> groupId>Org.springframework.bootgroupId> artifactid>
AOP is the abbreviation of aspect oriented programming, which means: face-cutting programming, through the Pre-compilation method and Run-time dynamic agent implementation of the unified maintenance of the program functions of a Technology. AOP is an important part of the spring framework by defining an entry point for an existing program and then cutting into different executions before and after it, such as: opening a database connection/closing a d
Spring Boot attribute configuration and custom attribute Configuration
In the process of using spring boot, we can find that the project can complete the corresponding functions with only a few configurations, thanks to the modular configuration in spring
/M02/A6/08/wKioL1nIVrSD3SqIAAA5sN-Euv8996.png "title=" 001. PNG "alt=" Wkiol1nivrsd3sqiaaa5sn-euv8996.png "/>the above-described JdbcTemplate just a few of the most basic operations, more information on the use of other data access operations please refer to: JdbctemplateapiHttps://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/jdbc/core/JdbcTemplate.htmlwith this simple example above, w
A piece of soy sauce, sort out some of the ways that spring boot background runs. Before we introduce the background run configuration, let's review some of the ways that the spring boot app works:
Run the Spring boot app
obtained from the SSL Certificate Authority center. This example demonstrates the generation of a self-signed certificate.Each JDK or JRE has a tool called keytool, which is a certificate management tool that can be used to generate self-signed certificates.After configuring the Java_home and adding the Java_home bin directory to path, you can invoke the command on the Console:Keytool-genkey-alias Tomcat?At this point we generate A. keystore hidden f
JdkSerializationRedisSerializer by default, which means that both the key and value are serialized through Java. StringRedisTemplate uses StringRedisSerializer by default.
For example, if RedisTemplate is used, we want to serialize the value of the Product type to JSON, and the key is of the String type. The setKeySerializer () and setValueSerializer () Methods of the RedisTemplate must be as follows:
@ Bean public RedisTemplate redisTemplate (RedisC
Uploading files is one of the most frequently used scenes in the Internet, and the most typical case is uploading avatars and so on, today with a small case that takes everyone to do a spring boot upload file.1, POM package configurationWe use the latest version of Spring boot 1.5.9, JDK use 1.8, tomcat8.0. Org.spri
and we need to access them via the POST method.
Endpoints. Shutdown. Enabled=true
Customizing EndpointsEndpoints can be customized in the Spring Boot configuration file. For example, above, we open the shutdown endpoint.
Endpoints. Shutdown. Enabled=true
The prefix for the endpoint is, Endpoints + "." + END name.The defa
Onseentity
You can see that the above prints a variety of information indicating that the launch was successful.
Browser access
http://localhost:8080/
You can see the output Hello world information.
Related instructions:
@EnableAutoConfiguration and Springapplication.
1, @EnableAutoConfiguration for automatic configuration. It is based on your POM configuration (which should actually be based on specific dependencies) to determine what the application is and create the appropriate envi
Springboot version is 2.0.4In the process of integration, spring boot helped us to bring out most of the properties of Kafka, but some of the less common attributes needed to bespring.kafka.consumer.properties.*To set, for example, Max.partition.fetch.bytes, a fetch request, records maximum value obtained from a partition.Add the Kafka Extension property in Appli
Play Spring boot integration Dubbo using spring boot and Dubbo integration, here I have tried to use annotations, the simple use of annotations to register the service is actually no problem, but when you involve the use of annotations in the service to refer to the transaction, injection of other objects, There will b
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