StrUtil.java
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package com.example.mina.server.util;
import lombok.extern.slf4j.Slf4j;
/**
* @author 杜云山
* @date 2021/03/05
*/
@Slf4j
public class StrUtil {
public static int[] parseCommaInts(String str) {
if (str == null) {
return new int[0];
}
String[] ss = str.split(",");
int[] ids = new int[ss.length];
int count = 0;
for (int i = 0; i < ss.length; i++) {
int p = toInt(ss[i]);
ids[i] = p;
if (p >= 0) {
count++;
}
}
if (count < ss.length) {
int[] ids2 = new int[count];
count = 0;
for (int i = 0; i < ss.length; i++) {
if (ids[i] >= 0) {
ids2[count++] = ids[i];
}
}
ids = ids2;
}
return ids;
}
public static int toInt(String str) {
if (isEmpty(str)) {
return -1;
}
try {
float f = Float.parseFloat(str.trim());
return (int) f;
} catch (Exception e) {
log.error("{}, 无法转换为数字", str, e);
return -1;
}
}
public static boolean isEmpty(String str) {
return str == null || str.trim().isEmpty();
}
}