List Array 操作總結

1.將list 集合進行分段處理：

 pom 文件引入：

<!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
<dependency>
   <groupId>com.google.guava</groupId>
   <artifactId>guava</artifactId>
   <version>20.0</version>
</dependency>

運用： List<List<String>> promotionCodes = Lists.partition(dataList, 100);

for (List<String> list : promotionCodes) {
  log.info("第一段的集合:{}":,list);
}