Api (Application Programming Interface) Application Programming Interface JRE (Java Runtime Environment) Java Runtime Environment JDK (Java Development Toolkit) Java Development Toolkit SDK (Software Development Toolkit) JVM (Java Virtual Machine) Java Virtual Machine JNI (Java Native Interface) Java Local Interface AWT (Abstract Windows Toolekit) Abstract Window Toolkit JNDI (Java Naming & Directory Interface) Java Naming Directory Service. Its main function is to provide a directory system on which applications in different places can leave their own indexes to meet the function of finding and locating distributed applications quickly. JMS (Java message service) Java message service. It mainly realizes communication between various applications, including point-to-point and broadcasting. JTA (Java transaction API) JAVA transaction service. Provide various distributed trading services. The application only needs to call its interface. JAF (Java action framework) Java security authentication framework. Provide some security control framework. Let developers realize their own personalized security control strategy through various deployments and customizations. RMI (Remote Method Interface). Test case for remote method call CVS (Concurrent Versions System) Version Controller SVN (Subversion) Version Controller TC (Test Case) is a set of test inputs, execution conditions and expected results compiled for a specific goal to test a program path or verify whether it meets specific requirements. Refers to the description of specific software product testing tasks, which embodies the testing scheme, method, technology and strategy. The contents include test objectives, test environment, input data, test steps, expected results, test scripts, etc. , and form a document. TDD test-driven development HTTP hypertext transfer protocol FTP file transfer protocol TCP/ IP transmission control protocol/ Internet Protocol Transmission Control Protocol and Internet Protocol SMTP Simple Mail Transfer Protocol Simple Mail Transfer Protocol LAN LAN IPX Internet Working Packet Switching Internet Packet Transfer Change SNA System Network Architecture System Network Architecture DNS Domain Name Service ISP DHCP Dynamic Host Configuration N Protocol Dynamic Host Configuration Protocol IETF Internet Engineering Task Force URI (system A resource identifier) URL (Uniform Resource Locator) Uniform Resource Locator, a subset of URIs, REST (Expressive State Transfer), HTML (Hypertext Markup Language), RFC (Request for Comment, Internet Standard (Draft) HREF (Hypertext Reference Hypertext Connection) IMAP is the abbreviation of Internet message access protocol, which is an Internet protocol for accessing emails stored on a server. DBCP (Database Connection Pool) Database Connection Pool CGLIB (Code Generation Library) CGLIB is a powerful, high-performance and high-quality code generation class library. It can extend Java classes and implement Java interfaces at runtime. Hibernate uses it to realize the dynamic generation of PO bytecode. SOAP (Simple Object Access Protocol) is a communication protocol based on XML, which is used for network information exchange in decentralized and distributed environments. Under this protocol, software components or applications can communicate through the standard HTTP protocol. Its design goal is simplicity and extensibility, which contributes to the interoperability between a large number of heterogeneous programs and platforms, so that existing applications can be accessed by a wide range of users. The essence of SOA (Service Oriented Architecture) service-oriented architecture is to separate the system model from the system implementation. Wsdl (web service description language) is an XML-based language for describing web services and how to access them. Uddi (universal description, discovery and inger gration) is a directory service that enterprises can use to register and search Web services. Universal description, discovery and integration services. DTD document type definition of DWR (Direct web Remoting) java, which establishes a set of rules for XML documents or document collections. It is not an independent technical specification, but a part of the specification. The document type declaration in an XML document can be a tag constraint or an external document with tag constraints. The sum of these two constraints is DTD. It specifies how XML documents are constructed. PI Processing Instruction instructs the application to perform some specific tasks in XML. The format is