Open lmy8848 opened 2 years ago
JFinal 是基于 Java 语言的极速 WEB + ORM 框架,其核心设计目标是开发迅速、代码量少、学习简单、功能强大、轻量级、易扩展、Restful。在拥有Java语言所有优势的同时再拥有 ruby、python 等动态语言的开发效率!为您节约更多时间,去陪恋人、家人和朋友 ;)
<dependency>
<groupId>com.jfinal</groupId>
<artifactId>jfinal</artifactId>
<version>5.0.3</version>
</dependency>
1. 控制器(支持 Enjoy、JSP、JSON等等以及自定义视图渲染)
@Before(BlogInterceptor.class)
public class BlogController extends Controller {
@Inject
BlogService service;
public void index() {
set("blogPage", service.paginate(getInt(0, 1), 10));
render("blog.html");
}
public void add() {
}
@Before(BlogValidator.class)
public void save() {
getModel(Blog.class).save();
redirect("/blog");
}
public void edit() {
set("blog", service.findById(getInt()));
}
@Before(BlogValidator.class)
public void update() {
getModel(Blog.class).update();
redirect("/blog");
}
public void delete() {
service.deleteById(getInt());
redirect("/blog");
}
}
2.Service所有业务与sql全部放在Service层
public class BlogService {
private Blog dao = new Blog().dao();
public Page<Blog> paginate(int pageNumber, int pageSize) {
return dao.paginate(pageNumber, pageSize, "select *", "from blog order by id asc");
}
public Blog findById(int id) {
return dao.findById(id);
}
public void deleteById(int id) {
dao.deleteById(id);
}
}
3.Model(无xml、无annotaion、无attribute)
public class Blog extends Model<Blog> {
}
4.Validator(API引导式校验,比xml校验方便N倍,有代码检查不易出错)
public class BlogValidator extends Validator {
protected void validate(Controller controller) {
validateRequiredString("blog.title", "titleMsg", "请输入Blog标题!");
validateRequiredString("blog.content", "contentMsg", "请输入Blog内容!");
}
protected void handleError(Controller controller) {
controller.keepModel(Blog.class);
}
}
5.拦截器(在此demo中仅为示例,本demo不需要此拦截器)
public class BlogInterceptor implements Interceptor {
public void intercept(Invocation inv) {
System.out.println("Before invoking " + inv.getActionKey());
inv.invoke();
System.out.println("After invoking " + inv.getActionKey());
}
}
http://39.105.77.85/?#/Java_web
Description