spring-framework | 中文注释的spring-framework | Application Framework library

 by   MrSorrow Java Version: Current License: No License

kandi X-RAY | spring-framework Summary

kandi X-RAY | spring-framework Summary

spring-framework is a Java library typically used in Server, Application Framework, Spring Boot, Spring, Framework applications. spring-framework has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can download it from GitHub.

This is the home of the Spring Framework, the foundation for all Spring projects. Together the Spring Framework and the family of Spring projects make up what we call "Spring". Spring provides everything you need beyond the Java language to create enterprise applications in a wide range of scenarios and architectures. Please read the Overview section in the reference for a more complete introduction.

            kandi-support Support

              spring-framework has a low active ecosystem.
              It has 27 star(s) with 30 fork(s). There are 2 watchers for this library.
              It had no major release in the last 6 months.
              spring-framework has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of spring-framework is current.

            kandi-Quality Quality

              spring-framework has 0 bugs and 0 code smells.

            kandi-Security Security

              spring-framework has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              spring-framework code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              spring-framework does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              spring-framework releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.
              Installation instructions are available. Examples and code snippets are not available.
              spring-framework saves you 1471266 person hours of effort in developing the same functionality from scratch.
              It has 638112 lines of code, 64704 functions and 7720 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed spring-framework and discovered the below as its top functions. This is intended to give you an instant insight into spring-framework implemented functionality, and help decide if they suit your requirements.
            • Reads the bytecode instructions .
            • Compares two objects .
            • Instantiate the bean using the factory method .
            • Puts this method information into the given byte vector .
            • Attempts to reconcile the declared parameters .
            • Searches for the given element .
            • Emits a list of methods .
            • Attempt to match a given pattern .
            • Process the scheduled task .
            • Merges the given block into this block .
            Get all kandi verified functions for this library.

            spring-framework Key Features

            No Key Features are available at this moment for spring-framework.

            spring-framework Examples and Code Snippets

            No Code Snippets are available at this moment for spring-framework.

            Community Discussions


            spring async method call with JPA transactions
            Asked 2021-Jun-13 at 21:11

            I am implementing a backend service with Spring Boot. This service receives a REST request and executes some database operations and finally updates the status of the record.

            After that, I would like to start a new async process and execute another data manipulation on the same record this way:



            Answered 2021-Jun-13 at 21:11

            It is NOT GUARANTEED that "the 1st, classA.doSomething() method will always finish and commit the transaction before the 2nd classB.complete() async call check the status of the same record".

            Transactions are implemented as some kind of interceptors appropriate for the framework (this is true for CDI too). The method marked @Transactional is intercepted by the framework, so the transaction will not end before the closing } of the method. As a matter of fact, if the transaction was started by another method higher in the stack, it will end even later.

            So, ClassB has plenty of time to run and see inconsistent state.

            I would place the 1st part of doSomething in a separate REQUIRES_NEW transaction method (you may need to place it in a different class, depending on how you configured transaction interceptors; if you are using AOP, Spring may be able to intercept calls to methods of the same object, otherwise it relies on the injected proxy object to do the interception and calling a method through this will not activate the interceptor; again this is true for other frameworks as well, like CDI and EJB). The method doSomething calls the 1st part method, which finishes in a new transaction, then ClassB can continue asynchronously.

            Now, in that case (as correctly pointed out in the comment), there is a chance that the 1st transaction succeeds and the 2nd fails. If this is the case, you will have to put logic in the system about how to compensate for this inconsistent state. Frameworks cannot deal with it because there is not one recipe, it is a per case "treatment". Some thoughts, in case they help: make sure that the state of the system after the 1st transaction clearly says that the second transaction should complete "shortly after". E.g. keep a "1st tx committed at" field; a scheduled task can check this timestamp and take action if it is too far in the past. JMS gives you all this - you get retries and a dead letter queue for the failed cases.

            Source https://stackoverflow.com/questions/67944551


            If a spring singleton bean has a dependency to another bean, will they be destroyed in the reverse order they were created in?
            Asked 2021-Jun-11 at 07:25

            This is a question about the default behavior of Spring. Say I have a singleton bean called BeanA, which has a constructor dependency to a singleton bean called BeanB. BeanB will have to be created before BeanA in order to satisfy that dependency. If both beans implement the DisposableBean interface I would expect the destroy method to be called in the reverse order that the beans were created in, but I can't see it mentioned in the documentation. The best I've found is the documentation for the DependsOn annotation (https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/annotation/DependsOn.html) but it doesn't mention what the behavior is when DependsOn isn't used.

            Edit: As I mentioned in a comment below: I've tried this out and in my test it works as expected. BeanA is destroyed before BeanB. I would like some documentation or similar to know that this is always the case though.



            Answered 2021-Jun-11 at 07:25

            After testing and looking through the Spring source code (for example the DefaultSingletonBeanRegistry mentioned by M. Deinum in a comment) I have found that two singleton beans where one is dependendent on the other will indeed be destroyed in the reverse order they are created in. When thinking about it I have a hard time seeing how it could work in another way. If the beans were not destroyed in the reverse order it would cause a lot of problems. For example, during the shutdown of an app a bean could try to use another bean that has already been destroyed. Unfortunately, I still haven't found any confirmation of the behavior in the documentation.

            Source https://stackoverflow.com/questions/67820599


            Any replacement for locatorFactorySelector in Spring 5.3.7
            Asked 2021-Jun-08 at 18:20

            We are using Spring 4.3.5 in our application. While we try to uplift the Spring to 5.3.7, we are not able to initialize beans(inside "beanRefFactory.xml") inside the below tag-



            Answered 2021-Jun-08 at 18:20

            I solved this by creating a custom class BeanFactoryContextLoader.java which extends ContextLoaderListener.

            Source https://stackoverflow.com/questions/67819823


            How do I import AppConfig.java class in Spring app?
            Asked 2021-Jun-08 at 16:04

            I'm following the docs of spring framework and trying to realize it by code, but I'm stuck on AppConfig class. What dependency do I need to import AppConfig class? I've injected spring-beans, spring-web, spring-context, spring-webmvc already and my spring version is 5.2.5.RELEASE.

            I googled "AppConfig cannot be resolved to a type" but couldn't get anything about it.

            And this is the part of code from https://docs.spring.io/spring-framework/docs/current/reference/html/web.html#spring-web



            Answered 2021-Jun-08 at 16:04

            You need to create the Configuration bean first named AppConfig .

            Some thing like below:

            Source https://stackoverflow.com/questions/67890338


            Hibernate - Insert generated id in column other than id one on save
            Asked 2021-Jun-08 at 13:50

            is there a way to perform insertion of an @Id-column value into a non @Id column when entity is being created/updated to avoid double-save-ing?



            Answered 2021-Jun-08 at 11:59

            @GeneratorType allows to generate/set values into entity during insertion phase. Suppose your entity looks like this:

            Source https://stackoverflow.com/questions/67885418


            SpringBoot - Generic function for WebFlux getting ClassCastException
            Asked 2021-Jun-06 at 18:40

            I'm trying to write a generic function to do some Webflux operations and I'm getting a class cast exception that I can't figure out



            Answered 2021-Jun-05 at 18:24

            This works so you're probably not getting a ViewModel back from your webClient body but rather the map of parameters (or something) from the ViewModel.

            Source https://stackoverflow.com/questions/67851149


            How to send message when Websocket opened on Webflux
            Asked 2021-May-27 at 08:30

            I created WebsocketHandler as it was shown in the Webflux websocket doc.



            Answered 2021-May-27 at 08:30

            After some research I found that, this can be solved with the Flux itself. It is enough that we add startWith method to the Flux. As in the definition of the startWith method.

            Prepend the given values before this Flux sequence.

            So we prepend our Hello message to the start of the Flux and it will be published first.

            Source https://stackoverflow.com/questions/67718515


            Spring's CachingConnectionFactory. Why do we need to close sessions although they are to be cached?
            Asked 2021-May-24 at 16:17

            I am trying to get my head around the Spring CachingConnectionFactory.

            ActiveMQ documentation recommends when using JmsTemplate that a Spring CachingConnectionFactory or an ActiveMQ PooledConnectionFactory is used as the connection factory implementation.

            I understand this because using the normal ConnectionFactory a connection is created, a session started, and both are closed for EVERY call of the jmsTemplate.send() which is very wasteful.

            So I am trying to implement a custom JmsTemplate bean with a CachingConnectionFactory for use where I may have many requests that are A) Persisted to DB B) Enqueued JMS.



            Answered 2021-May-24 at 16:17

            The JmsTemplate reliably closes its resources after each operation (returning the session to the cache), including execute().

            That comment is related to user code using sessions directly; the close operation is intercepted and used to return the session to the cache, instead of actually closing it. You MUST call close, otherwise the session will be orphaned.

            Yes, the transaction will roll back (immediately) if its sessionTransacted is true.

            You should NOT call commit - the template will do that when execute exits normally (if it is sessionTransacted).

            Source https://stackoverflow.com/questions/67641252


            Is there a way to block all external network access from a Java JUnit test?
            Asked 2021-May-24 at 07:18

            Often I work on Spring Boot Java applications (built with Gradle or Maven) that make network calls to external services (e.g. to external REST-like APIs). When running automated (JUnit) tests, I do not want these calls to happen, even by accident. Calling a real endpoint (even a "dev" environment one designed for testing) could affect external state, cause needless server workload, or unintentionally reveal information to the endpoint. It might also cause the test to inadvertently depend on that external resource being up, leading to build failures if the resource ever goes down while building the project, or when building the project offline.

            What should typically happen with these calls is that they should either be mocked out to do nothing or should point to a service on the same machine (e.g. a WireMock endpoint on localhost spun up by the test, or a local Docker container spun up by the test using Testcontainers).

            What I tend to in these situations is create a test-specific bean definition profile that overrides all HTTP endpoints with something obviously bogus that is guaranteed not to route somewhere, e.g. http://example.invalid/bookSearch. That way, if a developer misses mocking out or changing the endpoint in a test, it won't call a real one and trigger real side effects.

            However, this approach is potentially error prone, and oversights in the implementation or with future changes could cause network calls to still be made. Examples include:

            1. A new endpoint could be added by a developer without remembering to or knowing that they needed to override the test route
            2. An endpoint could be missed being overridden in the first place
            3. A third party library could be making a request that the developer didn't know about or wasn't accounted for

            This is mostly a concern with Spring integration tests that spin up some or all of the environment (e.g. using @SpringBootTest or @ExtendWith(SpringExtension.class)). However, this could conceivably apply to a unit test if a component used something as a non-required constructor argument that connected to the network, or if a developer passed in a real network-connecting component where they should have used a mock or something connecting to localhost.

            It occurs to me that there might be a more bullet-proof solution to this scenario. For instance, perhaps there is a way to tell the JVM or its underlying HTTP/FTP/etc. libraries to block all external network traffic.

            Is there a way to prevent nonlocal network access in Java Spring Boot JUnit tests, or otherwise provide a guarantee that external network endpoints will not be called?



            Answered 2021-May-12 at 22:43

            I don't know of a way to do this within the JVM environment.

            It sounds like you are talking more about functional/integration testing than unit testing. I suspect, docker would probably work well since you can isolate the network for a container explicitly. I personally use WireMock with docker compose to do something very similar.

            Source https://stackoverflow.com/questions/67099279


            Inspecting Spring Security MethodInvocation for precise argument info
            Asked 2021-May-21 at 19:10

            Spring Security here and trying to figure out how to use a MethodInvocation instance to get:

            1. a list of all the arguments (name and type) passed to the method; and
            2. each argument's corresponding value

            There is the MethodInvocation#getArguments() : Object[] method but there is absolutely zero Spring Security documentation as to what type(s) can be returned inside the object array.



            Answered 2021-May-21 at 19:10

            It is an array containing all the arguments of the invoked method .The most left argument starts from the index 0 and so on.

            Suppose the invoked method is :

            Source https://stackoverflow.com/questions/67642336

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            The JavaScriptUtils.javaScriptEscape method in web/util/JavaScriptUtils.java in Spring MVC in Spring Framework before 3.2.2 does not properly escape certain characters, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a (1) line separator or (2) paragraph separator Unicode character or (3) left or (4) right angle bracket.
            The Spring OXM wrapper in Spring Framework before 3.2.4 and 4.0.0.M1, when using the JAXB marshaller, does not disable entity resolution, which allows context-dependent attackers to read arbitrary files, cause a denial of service, and conduct CSRF attacks via an XML external entity declaration in conjunction with an entity reference in a (1) DOMSource, (2) StAXSource, (3) SAXSource, or (4) StreamSource, aka an XML External Entity (XXE) issue.

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            The Spring Frameworks maintains reference documentation (published and source), Github wiki pages, and an API reference. There are also guides and tutorials across Spring projects.
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