fitler commons

Commons-validator (1) The commons-validator package is used to extract the validation rule program for reuse. This package can be used in struts or independently applied in any other application. You can customize the verification method using Java classes, or configure the verification method using regular expressions in the configuration file. It not only supports server-side verification, but also suppo

Apache commons contains many open-source tools to solve common programming problems and reduce repetitive work. I have selected some common projects for a brief introduction. I used a lot of online ready-made items in this article. I just made a summary. Commons beanutilsHttp://jakarta.apache.org/commons/beanutils/index.htmlDescription: A bean tool set. Beanutil

The Commons-beanutils class Library has a Beancomparator class that can be used to sort JavaBean. But this class can only sort on one property at a time. Here is an example of using Beancomparator to sort multiple properties of JavaBean, very simple: 1.import Org.apache.commons.beanutils.BeanComparator; 2.import java.util.Collections; 3.import Java.util.Comparator; 4.import java.util.List; 5.6./** 7. * Class 8 that sorts multiple properties of a L

(registration) that allow you to provide custom registration services. Registration is a markup interface.@Configurationbr/> @EnableDiscoveryClient (autoregister=false)Private Serviceregistry Registry;public MyConfiguration(ServiceRegistry registry) { this.registry = registry;}// called via some external process, such as an event or a custom actuator endpointpublic void register() { Registration registration = constructRegistration(); this.registry.register(registration);}}Each service

Introduced: The Apache common-configuration tool can be used from Properties files, XML files, jndi,jdbc data sources, System Properties,applet Parameters,servlet parameters, etc. read the appropriate information. Use steps: Premise, the introduction of Commons-configuration-1.6.jar this jar package, but also must be reflected in the Commm-logging.jar,common-lang.jar and Common-collection.jar Examples of XML operations: Package com.dada.test; Impo

In the process of doing a small project need to use the image upload function, so use a small file upload commons-fileupload components. The response process is this: in the JSP page through the input tag to get picture file ==> sent to the servlet processing ==>servlet in the validation size, format, etc., and finally write the hard drive and path saved to the Database ==> control page Jump . Servlet in the processing code I do not mention, and the m

js| Upload Maybe the good things need to be discovered and summed up slowly. I used to write JSP systems are using JSP smartupload components to solve. A few days ago, the customer complained that when uploading large files, browsers did not respond, or even crash. Asked me to help solve and add upload progress (this is not a list, there is a need to add me msn:info@hkeb.com). Immediately Google, Baidu, just know that JSP smartupload applicable to the comparison of small files, and if the upload

Tags: Apache Java source code dbutilsApachecommons Dbutils is an open source JDBC tool class library provided by the Apache organization, which encapsulates the traditional operations database class two times and can convert the result set to a list.The latest version is now 1.6.The official website address is: http://commons.apache.org/proper/commons-dbutils/Dbutils is a small JDBC lightweight package, the core of which is the encapsulation of the re

SummaryAs an Enterprise Java developer, we always need to implement various functions, such as parsing XML, using HTTP, verifying input and processing dates. The objective of using the Jakarta Commons project is to create components responsible for processing all such common tasks, saving time and allowing you to focus on core business solutions. In this article, we will briefly introduce the Jakarta Commons