需传参数：pageSize (required = false,defaultValue=10) bookId (required = false,defaultValue = " ")
假设已经获得集合 list<Book> 对象，对其进行分页显示：
boolean flag = false;
int sum = 0;
List<Book> bookList = new ArrayList<Book>();
for(int i=0;i<list.size;i++){
Book book = list.get(i);
if(flag){
if(sum<pageSize){
bookList.add(good);
sum+=1;
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}else{
break;
}
}else{
if(goodsId.equals(" "){
bookList.add(book);
flag = true;
sum +=1;
}else if(bookId.equals(book.getId()){
flag = true;
}
}
}
Map<String,Object> map = new HashMap<String,Object>();
map.put("bookList",bookList);
返回map对象即为需查找的分页内容！
} else {break;}} else {