Recommended 10 Jar Package effects (favorites)

This article describes how to use Android to manipulate Excel files in an Excel file when you export a report using an open Source library JXL, originally used in Java, but also available for Android. A similar poi, because it relies on a large number of libraries, can only be used in Java, not Android. Using JXL needs to import Jxl.jar package in Android project, JXL can complete basic reading and writing operation of Excel, its support and unsupported situation are as follows: 1, JXL only support Excel2003 format, do not support Excel2007 format. The XLS file is supported, and the xlsx file is not supported. 2. JXL does not support directly modifying Excel files, but can be modified indirectly by copying new files to overwrite the original file. 3. JXL can only recognize images in PNG format and cannot recognize images in other formats. As can be seen above, JXL does not support Excel2007, this is very bad, especially the current Excel2007 has become the mainstream format of Excel. But now there's a realization Android read 2007 format

1.10 Recommended articles for exporting reports

Introduction: This article describes how to use Android to manipulate Excel files in an Excel file when you export a report using an open Source library JXL, originally used in Java, but also available for Android. A similar poi, because it relies on a large number of libraries, can only be used in Java, not Android. Using JXL needs to import Jxl.jar package in Android project, JXL can complete basic reading and writing operation of Excel, its support and unsupported situation are as follows: 1, JXL only support Excel2 ...

2.7 recommended articles for specific code implementation

Introduction: 1, get connection 1) Copy the jar package to the project directory 2) Add the jar package to the project's BuildPath environment variable, make classpath also consistent with BuildPath, make the ClassLoader easy to load specific subclass 3) Reflection Load driver class, Automatically registers the driver 4) to get the connection through the driver manager .        Create a jdbc.properties file under the current project with the following content (connected to Oracle 、...

3. Talking about the design of core architecture of development

Introduction: Wechat4jwhat is Wechat4j?wechat develop framework for Java (Development Framework Java Edition, the most easy-to-use development framework) WECHAT4J can be used for what? WECHAT4J is a jar package that helps you develop your application, and it takes only a few seconds for you to develop a public application, without paying attention to the details. wechat4j Quick start to download the WECHAT4J sample project and then on top of it ...

4.6 articles on the development framework recommended

Introduction: Wechat4jwhat is Wechat4j?wechat develop framework for Java (Development Framework Java Edition, the most easy-to-use development framework) WECHAT4J can be used for what? WECHAT4J is a jar package that helps you develop your application, and it takes only a few seconds for you to develop a public application, without paying attention to the details. wechat4j Quick start to download the WECHAT4J sample project and then on top of it ...

5. Summary of relevant courses on file configuration

Introduction: Using the SSM framework to do a few small projects, feel good is the time to summarize. Summarize the SSM consolidated file configuration first.　　In fact, it is best to look at the official documents for specific usage. Spring:http://spring.io/docs mybatis:http://mybatis.github.io/mybatis-3/Basic organizational structure and usage will not be said, the previous blog and official documents are very comprehensive. Jar packages can be organized using MAVEN ...

6. Recommended for 7 articles on XStream

Introduction: This article mainly introduces JavaBean based on XStream package to implement the method of transcoding XML document, combined with concrete instance form to analyze the specific use of XStream package to transform XML file, A friend you need can refer to the example of this article describes the JavaBean based on the XStream package implementation of the Transcoding XML document method. Share to everyone for your reference, as follows: 1. Required jar Package: Xpp3_min.jarxstream.jar site download address. Add these two jars to the project 2. Add two of ...

7. Java Topics for JDBC

Brief: JDBC (connection to Oracle) JDBC Programming Step:----Java connection to Oracle data (LOMBOZ_ECLIPSE) 1. In the Oracle Database installation folder, locate the JDBC Folder →lib folder →classesl2.jar (choose a different jar package according to the JRE) 2.lomboz_eclipse import this Jar package Import method: Create a

8. Intellij idea to quickly create a spring Web Project step (figure)

Summary: There are two ways to create a spring project, the first being the ability to create a spring project using Idea's own, and the second is to add a jar package yourself to create a spring project

9. Java development using XML format and JSON format data in detail and examples

Introduction: This article mainly describes the Java development using XML format and JSON format data examples, note the json-lib need for the jar package, the need for friends can refer to the following

10. Details Java packaged into jars and executes the main method specified in the JAR package

Introduction: This article mainly describes how to package Java into an executable jar, and execute the data of the main method specified in the jar package, the detailed sample code is given, which has a certain reference value for everyone, the friends who need to see it together.

"Related question and answer recommendation":

Java-Deploy the CAS service-side project to TOCMAT7 and start the Times wrong.

JAVA-OJDBC This jar package is just added up, why does not appear in referenced libraries inside? What's the use of appearing here?

Java-springboot Unable to load static resource file 404

Java-Recommended distributed solution

Android-conversion to Dalvik format failed with error 1