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工具及经验总结 置顶！
Java
SpringBoot启动
nohup java -jar xxx-0.0.1-SNAPSHOT.jar > micro-communication.log 2>&1 &
Maven
assembly方式和JSW(Java Service Wrapper)包装
- Maven打包使用assembly方式可以自定义打包后的文件格式，方便传输。
- 加入JSW包装让程序作为windows服务或者unix守护进程运行
- 增强程序的可靠性，程序崩溃后的自动重启，比如内存溢出，虚拟机崩溃等造成JVM退出的监控和恢复运行
- 标准的，可独立使用的配置JVM参数的脚本
- 支持java应用程序重启JVM，比如应用程序修改了配置文件，或者重启系统避免内存溢出等问题
<build>
<plugins>
<!-- Specify JDK compiler version -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<!-- Specify the configuration files that do not need to be packaged into the jar package -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.6</version>
<configuration>
<!-- The exclusion rule is recommended to be consistent with the import rules in the assembly.xml file -->
<excludes>
<!-- Custom configuration -->
<exclude>*.yml</exclude>
<exclude>*.xml</exclude>
<exclude>*.properties</exclude>
<exclude>static/**</exclude>
<!-- Must be configured -->
<exclude>*.conf</exclude>
<exclude>tools/**</exclude>
</excludes>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Packing command: mvn clean package appassembler:generate-daemons -Dmaven.test.skip=true -->
<!-- Using JSW services to create scaffolding for target material packages -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>appassembler-maven-plugin</artifactId>
<version>2.0.0</version>
<configuration>
<encoding>UTF-8</encoding>
<binFolder>bin</binFolder>
<tempDirectory>tmp</tempDirectory>
<logsDirectory>logs</logsDirectory>
<repositoryName>lib</repositoryName>
<repositoryLayout>flat</repositoryLayout>
<target>${project.build.directory}/dist</target>
<configurationDirectory>conf</configurationDirectory>
<copyConfigurationDirectory>true</copyConfigurationDirectory>
<configurationSourceDirectory>src/main/resources</configurationSourceDirectory>
<daemons>
<daemon>
<id>app</id>
<!-- Main Class -->
<mainClass>com.mmzs.zero.it.system.SystemApplication</mainClass>
<platforms>
<!-- Java Service Wrapper -->
<platform>jsw</platform>
</platforms>
<generatorConfigurations>
<generatorConfiguration>
<generator>jsw</generator>
<includes>
<include>aix-ppc-32</include>
<include>aix-ppc-64</include>
<include>linux-ppc-64</include>
<include>linux-x86-32</include>
<include>linux-x86-64</include>
<include>windows-x86-32</include>
<include>windows-x86-64</include>
<include>hpux-parisc-64</include>
<include>solaris-x86-32</include>
<include>solaris-sparc-32</include>
<include>solaris-sparc-64</include>
<include>macosx-ppc-32</include>
<include>macosx-universal-32</include>
<include>macosx-universal-64</include>
</includes>
<configuration>
<property>
<name>configuration.directory.in.classpath.first</name>
<value>conf</value>
</property>
<property>
<name>wrapper.ping.timeout</name>
<value>120</value>
</property>
<property>
<name>set.default.REPO_DIR</name>
<value>lib</value>
</property>
<property>
<name>wrapper.logfile</name>
<value>logs/wrapper.log</value>
</property>
</configuration>
</generatorConfiguration>
</generatorConfigurations>
<jvmSettings>
<!-- JMX -->
<systemProperties>
<systemProperty>java.security.policy=conf/policy.all</systemProperty>
<systemProperty>com.sun.management.jmxremote</systemProperty>
<systemProperty>com.sun.management.jmxremote.port=8500</systemProperty>
<systemProperty>com.sun.management.jmxremote.authenticate=false</systemProperty>
<systemProperty>com.sun.management.jmxremote.ssl=false</systemProperty>
</systemProperties>
<!-- https://blog.csdn.net/wo541075754/article/details/75008617 -->
<!-- https://zhaoyanblog.com/archives/440.html -->
<!-- https://www.javadoop.com/post/g1 -->
<extraArguments>
<extraArgument>-server</extraArgument>
<!-- Remote Debug -->
<extraArgument>-Xdebug</extraArgument>
<extraArgument>-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5006
</extraArgument>
<!-- Heap Dump -->
<extraArgument>-XX:+HeapDumpOnOutOfMemoryError</extraArgument>
<extraArgument>-XX:HeapDumpPath=logs/heap-dump.hprof</extraArgument>
<!-- GC Config -->
<extraArgument>-XX:+UseG1GC</extraArgument>
<extraArgument>-XX:MaxGCPauseMillis=200</extraArgument>
<extraArgument>-XX:InitiatingHeapOccupancyPercent=45</extraArgument>
<extraArgument>-XX:G1ReservePercent=10</extraArgument>
<extraArgument>-XX:NewRatio=2</extraArgument>
<extraArgument>-XX:SurvivorRatio=8</extraArgument>
<extraArgument>-XX:MaxTenuringThreshold=15</extraArgument>
<!-- GC Log -->
<extraArgument>-Xloggc:logs/gc.log</extraArgument>
<extraArgument>-XX:GCLogFileSize=10M</extraArgument>
<extraArgument>-XX:NumberOfGCLogFiles=10</extraArgument>
<extraArgument>-XX:+UseGCLogFileRotation</extraArgument>
<extraArgument>-XX:+PrintGCDateStamps</extraArgument>
<extraArgument>-XX:+PrintGCTimeStamps</extraArgument>
<extraArgument>-XX:+PrintGCDetails</extraArgument>
<extraArgument>-XX:+PrintHeapAtGC</extraArgument>
<extraArgument>-XX:+PrintGCApplicationStoppedTime</extraArgument>
<extraArgument>-XX:+DisableExplicitGC</extraArgument>
<extraArgument>-verbose:gc</extraArgument>
</extraArguments>
</jvmSettings>
</daemon>
</daemons>
</configuration>
<executions>
<execution>
<id>generate-jsw-scripts</id>
<phase>package</phase>
<goals>
<goal>generate-daemons</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Use assembly to package the scaffolding directory into compressed packets -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<descriptors>
<descriptor>src/main/resources/tools/assembly.xml</descriptor>
</descriptors>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
MyBatis
MyBatisplus
MyBatisplus自动化构建工具
1、使用前先导入对应的包：
<!-- mybatisplus生成工具需要的依赖 -->
...
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity</artifactId>
<version>1.7</version>
<scope>test</scope>
</dependency>
...
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>3.0.6</version>
<scope>test</scope>
</dependency>
2、使用方式如下：
package cn.micro.dc;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.rules.DbType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import java.lang.reflect.Field;
public class CustomGenerator {
public static void main(String[] args) throws Exception {
AutoGenerator mpg = new AutoGenerator();
// 全局配置
GlobalConfig gc = new GlobalConfig();
gc.setOutputDir("/Users/echo/IdeaProjects4/micro-dc/src/main/java");
gc.setFileOverride(true);
gc.setActiveRecord(true);
gc.setEnableCache(true);// XML 二级缓存
gc.setBaseResultMap(true);// XML ResultMap
gc.setBaseColumnList(true);// XML columList
gc.setAuthor("lry");
// 自定义文件命名，注意 %s 会自动填充表实体属性！
gc.setMapperName("I%sMapper");
gc.setXmlName("%sMapper");
gc.setServiceName("I%sService");
gc.setServiceImplName("%sServiceImpl");
gc.setControllerName("%sController");
mpg.setGlobalConfig(gc);
// 数据源配置
DataSourceConfig dsc = new DataSourceConfig();
dsc.setDbType(DbType.MYSQL);
dsc.setDriverName("com.mysql.jdbc.Driver");
dsc.setUrl("jdbc:mysql://xxx.xxx.xxx.xxx:3306/xxx?useUnicode=true&characterEncoding=UTF-8&generateSimpleParameterMetadata=true");
dsc.setUsername("root");
dsc.setPassword("root");
mpg.setDataSource(dsc);
// 策略配置
StrategyConfig strategy = new StrategyConfig();
strategy.setNaming(NamingStrategy.underline_to_camel);// 表名生成策略
strategy.setInclude(new String[]{"wx_user_info"}); // 需要生成的表
// strategy.setExclude(new String[]{"order"}); // 排除生成的表
Field field = strategy.getClass().getDeclaredField("logicDeleteFieldName");
field.setAccessible(true);
field.set(strategy, "logic_del");
mpg.setStrategy(strategy);
// 包配置
PackageConfig pc = new PackageConfig();
pc.setParent("cn.micro");
pc.setModuleName("dc");
mpg.setPackageInfo(pc);
// 执行生成
mpg.execute();
}
}
密钥
生成pfx签名文件
第一步：生成采用des3算法保护的私钥：
openssl genrsa -des3 -out private-rsa.key 1024
命令执行过程中，提示信息Enter pass phrase的含义是输入用来保护私钥文件的密码（最好不要超过6位）
第二步：生成公钥证书：
openssl req -new -x509 -key private-rsa.key -days 750 -out public-rsa.cer
该过程除了最开始时需要输入私钥文件的保护密码之外，其他需要的输入均可直接回车忽略，不影响正常使用。
第三步：生成PKCS12格式Keystore:
openssl pkcs12 -export -name test-alias -in public-rsa.cer -inkey private-rsa.key -out user-rsa.pfx
面试问题
设计
用户和用户组的概念
标题：工具及经验总结
作者：阿淼
地址：https://www.mmzsblog.cn/articles/2019/08/07/1565161662449.html
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