/*
* Copyright 2012-2019 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
import java.net.*;
import java.io.*;
import java.nio.channels.*;
import java.util.Properties;
public class MavenWrapperDownloader {
private static final String WRAPPER_VERSION = "0.5.5";
/**
* Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
*/
private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+ WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
/**
* Path to the maven-wrapper.properties file, which might contain a downloadUrl property to use instead of the
* default one.
*/
private static final String MAVEN_WRAPPER_PROPERTIES_PATH = ".mvn/wrapper/maven-wrapper.properties";
/**
* Path where the maven-wrapper.jar will be saved to.
*/
private static final String MAVEN_WRAPPER_JAR_PATH = ".mvn/wrapper/maven-wrapper.jar";
/**
* Name of the property which should be used to override the default download url for the wrapper.
*/
private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
public static void main(String args[]) {
System.out.println("- Downloader started");
File baseDirectory = new File(args[0]);
System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
// If the maven-wrapper.properties exists, read it and check if it contains a custom
// wrapperUrl parameter.
File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
String url = DEFAULT_DOWNLOAD_URL;
if (mavenWrapperPropertyFile.exists()) {
FileInputStream mavenWrapperPropertyFileInputStream = null;
try {
mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
Properties mavenWrapperProperties = new Properties();
mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
} catch (IOException e) {
System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
} finally {
try {
if (mavenWrapperPropertyFileInputStream != null) {
mavenWrapperPropertyFileInputStream.close();
}
} catch (IOException e) {
// Ignore ...
}
}
}
System.out.println("- Downloading from: " + url);
File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
if (!outputFile.getParentFile().exists()) {
if (!outputFile.getParentFile().mkdirs()) {
System.out.println(
"- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
}
}
System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
try {
downloadFileFromURL(url, outputFile);
System.out.println("Done");
System.exit(0);
} catch (Throwable e) {
System.out.println("- Error downloading");
e.printStackTrace();
System.exit(1);
}
}
private static void downloadFileFromURL(String urlString, File destination) throws Exception {
if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
String username = System.getenv("MVNW_USERNAME");
char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
Authenticator.setDefault(new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
}
URL website = new URL(urlString);
ReadableByteChannel rbc;
rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream(destination);
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
fos.close();
rbc.close();
}
}
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基于Springboot结合aop实现读写分离实例工程系统源码+项目说明.zip
共26个文件
java:15个
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基于Springboot结合aop实现读写分离实例工程系统源码+项目说明.zip 以Java语言来说,如今大部分的项目都是基于Spring Boot框架来搭建项目架构的,结合Spring本身自带的AOP工具,我们可以很容易就构建能实现读写分离效果的注解类,用注解的话可以达到对业务代码无入侵的效果,而且使用上也比较方便。 环境部署 数据库:MySql 库数量:2个,一主一从 关于mysql的主从环境部署之前已经写过文章介绍过了,这里就不再赘述,参考《windows版的mysql主从复制环境搭建》 【备注】 主要针对计算机相关专业的正在做毕设的学生和需要项目实战的Java学习者。 也可作为课程设计、期末大作业。包含:项目源码、数据库脚本、项目说明等,该项目可以直接作为毕设使用。 也可以用来学习参考借鉴!
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基于Springboot结合aop实现读写分离实例工程系统源码+项目说明.zip (26个子文件)
mvnw.cmd 6KB
项目说明.md 14KB
pom.xml 3KB
src
test
java
com
xjt
proxy
MysqlProxyApplicationTests.java 213B
service
UserServiceTest.java 990B
main
resources
sql
user.sql 1KB
mapper
UserMapper.xml 216B
application.yml 2KB
logback-spring.xml 2KB
java
com
xjt
proxy
mapper
UserMapper.java 209B
controller
UserController.java 612B
service
UserService.java 1KB
common
MyMapper.java 321B
dynamicdatasource
DataSourceSelector.java 327B
DataSourceContextAop.java 1KB
DataSourceContextHolder.java 499B
DynamicDataSource.java 336B
DynamicDataSourceEnum.java 380B
aop
DataSourceConfig.java 3KB
MysqlProxyApplication.java 326B
domain
User.java 743B
.mvn
wrapper
maven-wrapper.properties 218B
maven-wrapper.jar 50KB
MavenWrapperDownloader.java 5KB
mvnw 10KB
.gitignore 333B
共 26 条
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