Spring two things (10), spring10

Spring two things (10), spring10

First paste the POM content. After all, maven is used for simple construction.

 1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 2   <modelVersion>4.0.0</modelVersion> 3   <groupId>org.springframework.samples</groupId> 4   <artifactId>maven-spring002-aop</artifactId> 5   <version>0.0.1-SNAPSHOT</version> 6    7   <properties> 8  9         <!-- Generic properties -->10         <java.version>1.7</java.version>11         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>12         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>13 14         <!-- Spring -->15         <spring-framework.version>3.2.3.RELEASE</spring-framework.version>16 17         <!-- Logging -->18         <logback.version>1.0.13</logback.version>19         <slf4j.version>1.7.7</slf4j.version>20 21         <!-- Test -->22         <junit.version>4.11</junit.version>23         24         <!-- aspectj -->25 <!--         <aspectj.version>1.8.7</aspectj.version> -->26         <aspectj.version>1.6.6</aspectj.version>27 28     </properties>29     30     <dependencies>31         <!-- Spring and Transactions -->32         <dependency>33             <groupId>org.springframework</groupId>34             <artifactId>spring-context</artifactId>35             <version>${spring-framework.version}</version>36         </dependency>37         <dependency>38             <groupId>org.springframework</groupId>39             <artifactId>spring-tx</artifactId>40             <version>${spring-framework.version}</version>41         </dependency>42 43         <!-- Logging with SLF4J & LogBack -->44         <dependency>45             <groupId>org.slf4j</groupId>46             <artifactId>slf4j-api</artifactId>47             <version>${slf4j.version}</version>48             <scope>compile</scope>49         </dependency>50         <dependency>51             <groupId>ch.qos.logback</groupId>52             <artifactId>logback-classic</artifactId>53             <version>${logback.version}</version>54             <scope>runtime</scope>55         </dependency>56 57         <!-- Test Artifacts -->58         <dependency>59             <groupId>org.springframework</groupId>60             <artifactId>spring-test</artifactId>61             <version>${spring-framework.version}</version>62             <scope>test</scope>63         </dependency>64         <dependency>65             <groupId>junit</groupId>66             <artifactId>junit</artifactId>67             <version>${junit.version}</version>68             <scope>test</scope>69         </dependency>70 71         <dependency>72             <groupId>org.aspectj</groupId>73             <artifactId>aspectjweaver</artifactId>74             <version>${aspectj.version}</version>75         </dependency>76 77     </dependencies>78 79     <build>80         <plugins>81             <plugin>82                 <groupId>org.apache.maven.plugins</groupId>83                 <artifactId>maven-compiler-plugin</artifactId>84                 <configuration>85                     <source>1.7</source>86                     <target>1.7</target>87                 </configuration>88             </plugin>89         </plugins>90     </build> 91 92 </project>

For configuration of AOP, I personally prefer to use XML for configuration, which facilitates management and makes it clear that there is not much aop for a project, and it is difficult to manage it in the form of annotations.

ApplicationContext. xml only requires two lines.

1 <context: component-scan base-package = "com. lee. spring003.aop. annotation"> </context: component-scan> 2 3 <! -- Automatically create a proxy --> 4 <aop: aspectj-autoproxy> </aop: aspectj-autoproxy>

ITeacherDAO. java

1 package com.lee.spring003.aop.annotation;2 3 public interface ITeacherDAO {4     public String saveTeacher();5 }

TeacherDAOImpl. java

 1 package com.lee.spring003.aop.annotation; 2  3 import org.springframework.stereotype.Repository; 4  5 @Repository("teacherDAO") 6 public class TeacherDAOImpl implements ITeacherDAO { 7  8     @Override 9     public String saveTeacher() {10         System.out.println("TeacherDAOImpl - saveTeacher()");11         return "save successfully";12     }13 14 }

Transaction. java

1 package com. lee. spring003.aop. annotation; 2 3 import org. aspectj. lang. annotation. afterReturning; 4 import org. aspectj. lang. annotation. aspect; 5 import org. aspectj. lang. annotation. before; 6 import org. aspectj. lang. annotation. pointcut; 7 import org. springframework. stereotype. component; 8 9 @ Component ("transaction") 10 @ Aspect11 public class Transaction {12 13 @ Pointcut ("execution (* com. lee. spring003.aop. annotation. teacherDAOImpl. *(..)) ") 14 public void beginTransactionPointCut () {// method signature 15}; 16 17 @ Before (" beginTransactionPointCut () ") 18 public void beginTransaction () {19 System. out. println ("Begin transaction... "); 20} 21 22 @ AfterReturning (" beginTransactionPointCut () ") 23 public void commit () {24 System. out. println ("Transaction commit... "); 25} 26 27}

 

Github address: https://github.com/leechenxiang/maven-spring002-aop