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Apache-2.0

nature-demo是一个基于nature-framework开发的简单示例,包括mvc三层的应用,涉及到请求路径,服务类的注入,声明式事物和事务隔离级别的用法,数据源的简单配置,数据查询缓存,拦截器(支持全局拦截器,类拦截器,方法拦截器)的使用,国际化的实现,freemarker和jsp的使用,表单防止重复提交等简单示例。 框架地址:http://git.oschina.net/mvilplss/nature-framework 框架当前支持servlet3.0规范,建议使用jdk8.0和tomcat8.0或更高版本。 输入http://ip:port/nature-demo进入主页 实体类

/**
 * 用户类
 * 
 * 1、实体类,无需GET/SET方法,只需声明数据库字段的名称<p>
 * 2、使用注解控制指定主键@id,支持ADDSELF(数据库自增长)、UUID(框架维护)、ASSIGN(程序员指定id)<p>
 * 3、@Type:按照JAVA语言的基本类型进行设定,无需考虑数据库的字段,还支持默认值,长度设定等,简单快捷<p>
 */
@Table(name = "tb_user")
public class User extends NatureMap {
	private static final long serialVersionUID = 1L;
	
	@Id(strategy = Strategy.ADDSELF)
	@Type(type = Types.INT,length = "16")
	public String id = "id";

	@Type(type = Types.INT)
	public String age = "age";

	@Type(def = "女")
	public String sex = "sex";

	public String name = "name";
	
	@Type(type=Types.DOUBLE,length="10,2",def="1000")
	public String balance = "balance";
	
	@Type(length="300")
	public String address = "address";

}

控制类

/**
 * 用户控制层
 * 
 * 1、创建控制层继承NatureCtrl类并增加@Ctrl注解即可<p>
 * 2、类@Ctrl的namespace是控制层的命名空间,所有本控制层的请求都要通过namespace<p>
 * 3、属性@Inject注解是注入Service实例<p>
 * 4、方法@Ask注解是对方法的映射,如果不写url则默认映射为方法名;与namespace共同组成请求路径/namespace/list<p>
 * 5、返回支持直接返回页面"xxx.jsp",返回方法"xxx",返回JSON数据 JsonData,返回下载文件FileData等,绝对的简单快捷<p>
 * 6、在控制层需要页面传值的只需声明public类型变量即可,无需冗长的GET/SET<p>
 * 7、如需上传文件,控制层直接声明File类型变量即可,支持多文件集合上传,就像接受普通变量一样简单<p>
 * 
 */
@SuppressWarnings("serial")
@Interceptors({UserInterceptor.class})//非必需
@Ctrl(namespace="/user")
public class UserCtrl extends NatureCtrl{
	public User user=new User();//可以不new,如果new的话会防止控制针并提高项目效率
	public File myfile;//文件接收
	public ArrayList<File> files = new ArrayList<File>();//多文件接收。前台只需input的name为files[0...]
	public String action;
	
	@Inject
	protected UserService userService;
	
	
	@Ask(url="/list")
	public Object list(){
		page = userService.page(page);
		return "list.ftl";
	}
	
	@Ask
	public Object toOper(){
		if (user.getInt(user.id)!=0) {
			userService.byId(user);
			action = "update";
		}else{
			action = "insert";
		}
		return "oper.ftl";
	}

	@Ask
	@Redirect
	public Object insert(){
		userService.insert(user,"user_cache");
		return "list";
	}
	
	@Ask
	@Redirect
	public Object update(){
		userService.update(user,"user_cache");
		return "list";
	}
	
	@Ask
	@Redirect
	public Object delete(){
		userService.delete(user,"user_cache");
		return "list";
	}
	
	@Ask
	public Object getJson(){
		return new JsonData(userService.byId(user));
	}
	
        //文件下载示例,就是这么简单
	@Ask
	public Object getFile(){
		InputStream inputStream =this.getClass().getResourceAsStream("文件.docx");
		return new FileData(inputStream, "文件.docx", FileData.docx);
	}
	
}

服务类

/**
 * 用户服务类
 * 
 * 1、服务类,为了开发简单可以继承框架中的NatureService(非必需),添加@Service注解即可<p>
 * 2、事物控制可以通过@Tx进行极速实现<p>
 * 3、如果某些业务多读少写则建议使用缓存,使用方法只需传入缓存名称即可,如果缓存有配置则使用,否则使用默认配置。
 * 4、所有业务逻辑建议放在Service层<p>
 */

@Service
public class UserService extends NatureService {
	
	public Page page(Page page) {
		String sql = "select id,name,sex,age from tb_user where 1=1 order by id desc";
		return DatabaseHelper.query(page, sql,"user_cache");
	}

	@Tx(level=Connection.TRANSACTION_READ_COMMITTED)
	public int delete(NatureMap natureMap) {
		return super.delete(natureMap,"user_cache");
	}
	
}
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简介

nature-demo是一个基于nature-framework开发的简单示例,包括mvc三层的应用,涉及到请求路径,服务类的注入,声明式事物和事务隔离级别的用法,数据源的简单配置,数据查询缓存,拦截器(支持全局拦截器,类拦截器,方法拦截器)的使用,国际化的实现,freemarker和jsp的使用,表单防止重复提交等简单示例。 展开 收起
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