1. MVC layered development 1. Concept M: Model model (service + dao + pojo). V: View (HTML page + JSP page). C: Controller (Servlet). 2. Function Develop the code in layers according to different functions (stratification is different packages). 3.Features Reduce code redundancy and improve code reusability. Improved code readability. Facilitates later maintenance and upgrades. […]
Tag: forwarding
forwarding reference (forwarding reference) and std::forward
Source: https://isocpp.org/blog/2012/11/universal-references-in-c11-scott-meyers Reference: http://bajamircea.github.io/coding/cpp/2016/04/07/move-forward.html Perhaps the most important feature of C++11 is rvalue references; move semantics and perfect forwarding are both based on rvalue references. The declaration form of an rvalue reference is the same as the declaration of an lvalue reference, except that there is an extra & amp;’. But the presence of & […]
Understand the role of Layer 2 forwarding and gateways
Basic concepts The IPv4 address consists of the following two parts: Network part (network number): used to identify a network. The IP address does not reflect any geographical information about the location of the host, and can only determine which network the host belongs to through the network number field. For devices with the same […]
New features of C++: rvalue references, move semantics, perfect forwarding
Article directory 1. What are lvalues and rvalues? 2. What are lvalue references and rvalue references? 2.1 lvalue reference 2.2 rvalue reference 2.3 Discussion on the nature of left and right value references 3. Rvalue reference and std::move usage scenarios 3.1 Rvalue references optimize performance and avoid deep copies Shallow copy repeated release deep copy […]
Dual network card data sharing based on network card serial number (network card forwarding)
Based on the network card serial number: ifr.ifr_ifindex; Realize data forwarding between network cards #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <net/if.h> #include <sys/ioctl.h> #include <sys/types.h> #include <sys/socket.h> #include <linux/if_ether.h> #include <linux/if_packet.h> #define RET_ERROR -1 #define RET_FAIL 0 #define RET_SUCCESS 1 #define NIC1_NIC_IND 1 #define NIC2_NIC_IND 2 int g_eth1_index = 0; int g_eth2_index […]
lvalue reference, rvalue reference, move semantics, perfect forwarding
Article directory 1. Value category 1. Discrimination between conventional lvalues and rvalues before C++11 a. Whether the address acquisition operation can be performed b. List some regular expressions 2. Checkmate value 3. Pure rvalue 2. Reference type 1. lvalue reference 2. Rvalue reference (introduced by C++11 standard) 3. Type conversion 1. Move semantics std::move Deep […]
Use Spring Security to manage login operations/forwarding and redirection
Introduction Spring Security is a framework that focuses on providing authentication and authorization for Java programs. It can be easily extended to meet custom needs. Features Provides comprehensive and scalable support for identity authentication and authorization Prevent various attacks, such as callback fixation attacks, click hijacking, CSRF attacks, etc. Supports integration with Servlet API, Spring […]
[Supplement] Deploy Alist network disk locally in Windows system and use nginx for dynamic forwarding
【Introduction】 We usually worry about sharing local files on the system. At the same time, you will also be troubled by the inconvenience of sharing files. By chance I discovered a magical idea. Alist A file listing program that supports multiple storages and supports web browsing and webdav, powered by gin and Solidjs. Key point: […]
It just requires you to understand load balancing-lvs and forwarding mode
Original address: https://plantegg.github.io/2019/06/20/It just requires you to understand load balancing – lvs and forwarding mode/ This article hopes to explain clearly the various forwarding modes of LVS, as well as their workflow, advantages and disadvantages, and at the same time explain the reasons for the advantages and disadvantages from the principle of network packet flow, […]
[Intermediate Java] Master Spring MVC in one article – forwarding redirection (4)
Blogger introduction: The blogger is engaged in application security and big data fields, has 8 years of research and development experience, 5 years of interviewer experience, Java technology expert, WEB architect, Alibaba Cloud expert blogger, Huawei Yunyunxiang expert, 51CTO expert blogger Personal Community: Personal Community Personal homepage: Personal homepage Column address: ? Java Advanced Special […]