javaweb book store design classification module of 2

This article is brief in content, mainly introduces the classification module in javaweb book store, and the specific content is as follows

Class creation for the classification module

cn.itcast.bookstore.category
domain: Category
dao: CategoryDao
service: CategoryService
web. servlet: CategoryServlet

Query all categories

Process: main.jsp ( < iframe > ) - > CategoryService#findAll() - > left.jsp

Category

public class Category {
 private String cid;
 private String cname;

 public String getCid() {
 return cid;
 }
 public void setCid(String cid) {
 this.cid = cid;
 }
 public String getCname() {
 return cname;
 }
 public void setCname(String cname) {
 this.cname = cname;
 }
}