Resolve FTPClient upload file is empty, display 0 bytes

... JAVA When using FTPClient to upload files, it is always empty 分析: Port mode, is client C open a port and other server S to connect The data connection is established; in Pasv mode, the server S opens a port and waits for the client C to establish a data connection. : By default,...


Spring Cloud (1): Using Eureka for service registration and discovery

... As an option for distributed architecture development, Spring Cloud uses Spring Boot's development convenience to subtly simplify the development of distributed system infrastructure, such as services. Discover registration, configuration center, message bus, load balancing, circuit...


Java SE EE ME difference

... Java SE EE ME difference: Java SE=Java Standard Edition Java EE=Java Enterprise Edition Java ME=Java Mobile Edition SE (Standard Edition) is mainly used for desktop programs, console development (JFC) EE (Enterprise Edition) Enterprise Development (JSP, EJB): Website development and...


WebApiClient's SteeltoeOSS.Discovery extension

... 1 Background See some friends from the garden. In some project development, the architecture chosen is spring cloud to build the underlying microservices framework, dotnet core to write business logic, SteeltoeOSS .Discovery is a bridge between dotnet and spingcloud, providing service...


Software Engineering Graduates Xiao Ke

... Suddenly want to write something that has nothing to do with the technology he understands, it may be messy, just write it. Unlike many people who are crazy about training and programming, most of the students who came from our class include I have hesitated to engage in software...


Servlet filter

... 过滤器 问题: When setting the decoding character set, the following code appears in multiple servlets. Requirements: I want to avoid duplicate code request.setCharacterEncoding("utf-8"); 1. Concept Filter Filter Requests (responses) can be filtered Request--> Filter 1 --> Filter 2 --...


Android knowledge point

... Java knowledge point constructor / destructor finalize () final Context Object Application finally final means that no new subclass can be derived, can not be inherited as a parent class. Compile javac test.java, run java test arg0 arg1 ... try...catch...finally execute logic: finally...


The java exception system and the exception capture

... java exception is an error that occurs during the running of the program. Java treats exceptions as objects and defines a base class java.lang.Throwable as the superclass for all exceptions. Many exception classes are defined in the Java API, divided into two major classes, error Error...


Java multi-threaded collaboration CountDownLatch

... @DownLownLatch is a commonly used class of synchronous multi-threaded behavior under the current package. A count value needs to be entered in the construct. When this value is not zero, the thread executing await() will block, the thread Each time the countDown() method is executed,...


Spring's mind map makes Spring no longer difficult to understand

... Spring Spring is an open source framework created to solve the complexity of enterprise application development. One of the main strengths of the framework is its layered architecture, which allows you to choose which component to use while providing an integrated framework for J2EE...