JarCastingjt-common-core
在个人原有组件xm-common-core的基础上组成，主要封装一些常用方法,方便Java项目快速开发
微信订阅号 mu-zhuzi
版更新记录
- 1.0.4[2020-1-17] GsonUtil工具类,身份证验证和手机号码隐藏中间部位
- 1.0.3[2020-1-15] 修复spring cache单独设置key过期时间bug
- 1.0.2[2020-1-10] 支持spring cache使用redis做缓存,Redis故障或不可用时仍然执行sql层方法使服务可用
- 1.0.1[2020-1-1] 支持跨域,redis分布式锁
常用通用方法集合
├─base
├─beanvalidator
├─cache
├─config
├─constant
├─entity
├─exception
├─http
│ ├─request
│ └─response
└─utils
└─email
maven 中央仓库依赖
<dependency>
<groupId>com.github.bamboo-cn</groupId>
<artifactId>jt-common-core</artifactId>
<version>1.0.1</version>
</dependency>
以下依赖方式已经作废，推荐MAVEN中央仓库的方式引入
<repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories>
<dependency>
<groupId>com.github.bamboo-cn</groupId>
<artifactId>jt-common-core</artifactId>
<version>1.0.4</version>
</dependency>
spring-boot web项目启动类
@SpringBootApplication
@RestController
@SpringBootApplication(scanBasePackages = {"com.bamboo.common"})//加入扫描路径
@Import(value = {CorsConfig.class, LogFilter.class,SynRedisLockAspect.class}) //跨域,接口访问请求日志,redis分布式锁
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
@RequestMapping("/")
public Object index(){
return "helll demo"+DateUtils.getDate();
}
/**分布式锁**/
@RequestMapping("/synLock/{uid}")
@SynRedisLock(path = "syn:test:%s", indexProps = {"0"})
public Object synLock(@PathVariable("uid")Integer uid){
redisClient.set("test",uid.toString());
try {
Thread.sleep(5000);//停顿5秒
}catch (Exception e){
}
return redisClient.get("test");
}
}
根据需要引入工具类 import 实现可跨域和日志请求拦截处理,分布式锁
Reids分布式锁
/**分布式锁**/
@RequestMapping("/synLock/{uid}")
@SynRedisLock(path = "syn:test:%s", indexProps = {"0"})
public Object synLock(@PathVariable("uid")Integer uid)
path:key路径 indexProps:key路径中替换值对应的参数下标（从0开始）,如果是对象则为:参数名.属性
@SynRedisLock(path = "syn:test:%s", indexProps = {"user.id"})
public Object synLock(User user)
缓存功能配置
spring:
cache: #缓存配置
prefix: bamboo #key前缀
ttlTime: 2000 #缓存时长单位秒
redis: #redis配置同spring-redis配置相同
host: localhost
port: 6379
timeout: 2000
password: redis
database: 0
timeout: 2000
maxIdle: 10
maxTotal: 100
个别属性如果不配置默认和上面一样,password默认是空值
cache配置默认值
- prefix: spring-cache
- ttlTime: 3600 一个小时
默认支持spring cache使用redis做缓存
- 使用方式和spring cache注解相同
- 使用fastjson作为序列化
- Cacheable支持自定义单个key设置超时时间
自定义单个key设置超时时间,key加上字符串TTL=1000实现扩展单个KEY过期时间
//@Cacheable(key = "T(String).valueOf(#code).concat('TTL=10')")
@Cacheable(key = "#code+'TTL=10'")
public Double getRetailByCode(Integer code) {
RetailRatio retailRatio = retailRatioMapper.selectByPrimaryKey(code);
return retailRatio.getUnratio();
}
以上两种方式都可以(1.0.3版本已经修复)
具体使用参考以下地址 https://blog.csdn.net/zjcjava/article/details/103920388
GsonUtil工具类
GsonUtil提供了常用的对象转json字符串以及反向转换
Map<String,String> headMap = new LinkedHashMap<String,String>();
headMap.put("name","姓名");
headMap.put("age","20");
headMap.put("birthday","1990-12-20");
headMap.put("height","180");
headMap.put("weight","120");
headMap.put("sex","m");
//map转str
String str =GsonUtil.toJSONString(headMap);
System.out.println(str);
//str转obj
Student student= GsonUtil.parseObject(str,Student.class);
System.out.println(GsonUtil.toJSONString(student));
System.out.println(student.getBirthday());
System.out.println(student.getName());
//list转str
List<Student> list = new ArrayList<Student>();
list.add(student);
str =GsonUtil.toJSONString(list);
System.out.println(str);
//str转list
list= GsonUtil.parseObjectList(str,Student.class);
student = list.get(0);
System.out.println(student.getName());
个人订阅号
