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1. When the project does not reference the external jar package (j2se) Select project ----> right-click, export... ---> JAVA ---> select JAR file ---> next --> select the path and name of JAR file --> next --- Select Main class ---> finish.   2.

Let's take a look at the following ideas: Solve the problem that JSON cannot be parsed after gson Obfuscation 1. Do not confuse classes in the Google gson jar package 2. All attribute names in the object class implementing java. Io. serializable

Android project obfuscated the generated jar package, androidjar Another sleepless night The problem is that we have written some android project code to generate a jar package and confuse the jar package without being cut by others! First of all,

1. What is an interceptor:Interceptor, used in AOP (Aspect-Oriented Programming) to intercept a method or field before it is accessed, and then add some operations before or after it. Interception is an implementation policy of AOP. 2. Struts2

Table Declaration/*** @ Hibernate. Class table = "author" */ One-to-one   /** * @ Hibernate. One-to-one cascade = "all" constrained = "true" */ Public Person getperson (){ Return Person;} Multiple to one, one to multiple/*** @

  XML version = "1.0" encoding = "UTF-8" ?> Beans Xmlns = "Http://www.springframework.org/schema/beans" Xmlns: xsi = "Http://www.w3.org/2001/XMLSchema-instance" Xsi: schemalocation =

Package com. liren. javadb2; Import static org. JUnit. Assert. assertnotnull;Import static org. JUnit. Assert. fail; Import java. SQL. connection; Import javax. SQL. datasource; Import org. JUnit. test;Import org. JUnit. Runner. runwith;Import org.

Document directory 1. Prepare 2. Struts Section 3. Spring part 4. hibernate 1. Prepare Tool: myeclipse 6.0.1GAMysql-connector-java-5.0.4-bin.jar, MySQLGui tools 5.0(It is not required to facilitate MySQL Database Management) Environment:

Xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance"Xmlns: context = "http://www.springframework.org/schema/context"Xmlns: Tx = "http://www.springframework.org/schema/tx"Xsi: schemalocation = "http://www.springframework.org/schema/beans Http://

One-to-Multiple Association ing (unidirectionalClasses ---ÀStudent):   T_classesId | Name1 |Shang xuexiang T_studentId | Name | classesid1 | 10 | 12 |Zuer| 1                      

Java reflection-four steps and four steps of java In the previous three articles, we will get the basic knowledge of reflection and the structure of the running class through reflection, such as, attributes, methods, parent classes, interfaces,

Android development decompilation and prevention of decompilation, android development Decompilation Android development decompilation and prevention of Decompilation Preventing decompilation is a required course for every programmer, because when

Modify project. properties file [html] # proguard. config =$ {sdk. dir}/tools/proguard/proguard-android.txt: proguard-project.txt # proguard. config =$ {sdk. dir}/tools/proguard/proguard-android.txt: The proguard-project.txt removes the previous #,

Obtain generic information through reflection.     1 package com. coscon. reflectionTest; 2 3 import java. lang. reflect. method; 4 import java. lang. reflect. parameterizedType; 5 import java. lang. reflect. type; 6 import java. util. list; 7

This article describes how to solve the Fatal error: Class \ 'com \ 'not found in error in PHP on Windows. For more information, see. However, the performance of IIS running php on Windows Server 08 has improved a lot, but it still feels

The usage of the command line tool am in Android is as follows: Usage: am [subcommand] [options] Start an Activity: am start [-D] [-W] -D: enable debugging-W: wait for launch to complete Start a Service: am startservice Send a broadcast Intent: am

It is helpful to consolidate the foundation. The Troubleshooting is shown in the following section. direct makes some troubleshooting notes to share with you one by one. If you are interested, you can refer to the occasional tears and finally

Note: The original article was published on it168 Spring revolutionizes the previous programming model and introduces new concepts such as IOC, which is widely used. Currently, most j2ee projects use the Spring framework. The biggest problem with

Sitemesh Project Overview The sitemesh of OS (opensymphony) is a layout and decoration interface used to implement page layout and Decoration in JSP)The framework component helps website developers easily separate dynamic content from static

N + 1 selection problem definition:The n + 1 selects problem is caused by trying to load child records that are related to a list of parent records. There are three solutions in ibatis 1. Lazy Loading2. Avoid n + 1 select3. Use two select statements