工具说明:参数校验插件,注解式的标记参数的限制(为空、参数长度、取值范围),可以代替很多冗杂的if判断,比如:
public void hello(String host, User user) {
if (host == null || host.length() == 0) {
throw new IllegalArgumentException("host can't be empty");
}
if (user == null || user.getFullName() == null || user.getFullName().length() == 0) {
throw new IllegalArgumentException("user.fullName can't be empty");
}
System.out.println("====SUCCESS====");
}
可以使用插件优化代码,增强可读性:
@Verify(
notNull = {"host", "user.fullName"}
)
public void hello(String host, User user) {
System.out.println("====SUCCESS====");
}
<dependency>
<groupId>com.github.1510460325</groupId>
<artifactId>verify-utils</artifactId>
<version>0.0.1</version>
</dependency>
@SpringBootApplication
@EnableVerify
public class ProducerApplication {
public static void main(String[] args) {
SpringApplication.run(ProducerApplication.class, args);
}
}
@Verify(
notNull = {"user","users"},
sizeLimit = {"user.username [3,10]", "users [1,20]"},
regex = {"user.username=>^[a-zA-Z0-9]{5,20}$"},
numberLimit = {"count [1, 9999]"}
)
public String method1(User user, List<User> users, Date date, String name, Long time, Integer count, Double price) {
return "SUCCESS";
}
配置说明:
- NotNull:参数为String[],传入多个参数名,如果notNull = {""}表示所有参数都不为空*,检测dto对象需要用'.'来标明作用域:user.username
- SizeLimit传需要控制长度的参数(参数必须为String或者是集合对象Collection)规则:参数名+[start,end] (参数间可以有空格美化)
- regex正则匹配,规则:参数名=>正则语法(参数间不能有多余空格)
- numberLimit数字范围匹配(参数必须为Integer或者是Double):规则:参数名+[start,end] (参数间可以有空格美化)