Random random = SecureRandom.getInstanceStrong() ; 导致线程阻塞
真是史前巨坑,上生产环境导致线程阻塞,靠打印日志一点点定位这行代码。
/**
* 随机生成16位字符串
* @return
*/
public static String getRandomStr() {
try {
log.info("start getRandomStr...");
Random random = SecureRandom.getInstanceStrong();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < STR_COUNT; i++) {
int number = random.nextInt(BASE_RANDOM.length());
sb.append(BASE_RANDOM.charAt(number));
}
log.info("end getRandomStr...");
return sb.toString();
}catch (Exception e){
log.error("随机生成字符串异常",e);
throw new Exception(e.getMessage());
}
}
如无特殊要求,采用new SecureRandom()来替代SecureRandom.getInstanceStrong()即可;