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README
Apache-2.0

SMVC

====================

License Platform

SMVC 是基于java开发的轻量级MVC框架,框架依赖于spring-core。

框架开发宗旨:业务方法加上注解就是接口。 框架开发目的:该框架原型是为了学习spring而写的demo(原型,https://github.com/feichendingxiangyong/Smvc ,该框架在原型基础做了优化和简化),但后来该框架在实际项目中得到了应用,该框架具有如下特点:

  • 框架无入侵,只要注解即可完成路由配置;
  • 路由配置灵活,业务service即加上注解就是接口,返回值就是json或者页面名字;
  • HTTP/JSON参数自动注入接口方法参数;
  • 请求值要求json还是form、返回json还是返回页面 只需要注解即可搞定;request中的参数自动注入到接口方法参数中;
  • 拦截器配置极为简单,只需要简单注解。
  • 统一的异常处理,代码中再也不需要管任何异常,直接抛出去就好,出错了框架会为你返回错误码。

Installation

maven依赖:

<!-- https://mvnrepository.com/artifact/wang.moshu/smvc-framework -->
<dependency>
    <groupId>wang.moshu</groupId>
    <artifactId>smvc-framework</artifactId>
    <version>0.0.3</version>
</dependency>

DEMO

运行smvc-demo,打开index.html运行测试例子。演示地址:http://123.206.202.189:8080/smvc-demo/

Requirements

  • java 6.0+

License

SMVC is available under the Apache license, see the LICENSE file for more information.

使用指南

1.接口返回类型:页面或JSON

只需要在接口方法上指定returnType

1.1 返回页面

	@RequestMapping(value = "", returnType = ReturnType.PAGE)
	public String index()
	{
		// 返回index页面
		return "index";
	}

1.2 返回JSON

只需要在接口方法上指定returnType

	@RequestMapping(value = "returnData", returnType = ReturnType.JSON)
	public String returnData()
	{
		// 返回数据(框架自动打包为json)
		return "smvc maybe good.";
	}

2. 返回数据

2.1 对于返回页面,在接口方法上指定增加Map类型参数,接口中增加入Map的值就是返回给页面的值

	@RequestMapping(value = "returnValue", returnType = ReturnType.PAGE)
	public String returnValue(Map<Object, Object> returnMap)
	{
		returnMap.put("returnValue1", 1);
		returnMap.put("returnValue2", 2);
		// 返回页面
		return "returnValue";
	}

2.2 对于返回JSON,框架自动对返回值进行包装

接口:

	@RequestMapping(value = "returnData", returnType = ReturnType.JSON)
	public String returnData()
	{
		// 直接抛出异常
		return "smvc maybe good.";
	}

返回值:

{ "code":0, "data":"smvc maybe good.", "message":"", "returnCode":"" }

3.参数自动注入

3.1 路由参数自动注入接口参数

注意:参数类型须为java基本对象型 如下接口,路由中的name和id的值自动注入到接口name和id变量中。

	@RequestMapping(value = "routeParamInject/{name}/{id}", returnType = ReturnType.PAGE)
	public String routeParamInject(String name, Integer id, Map<Object, Object> returnMap)
	{
		returnMap.put("name", name);
		returnMap.put("id", id);
		// 返回页面
		return "routeParamInject";
	}

3.2 HTTP参数注入接口参数(java基本对象性)

接口

	@RequestMapping(value = "httpParamInject", returnType = ReturnType.PAGE)
	public String httpParamInject(String name, Integer id, Map<Object, Object> returnMap)
	{
		returnMap.put("name", name);
		returnMap.put("id", id);
		// 返回页面
		return "httpParamInject";
	}

url(post和get均支持)

http://localhost:8080/smvc-demo/p/httpParamInject?name=dingxy&id=1234

3.3 JSON参数注入接口参数(用户自定义对象性)

注解RequestMapping的requestDataType 变量默认为FORMDATA,也就是仅支持HTTP参数方式,如果需要支持JSON转换,需要指定requestDataType = RequestDataType.JSON

接口

	@RequestMapping(value = "jsonParamInject", requestDataType = RequestDataType.JSON, returnType = ReturnType.PAGE)
	public String jsonParamInject(HttpParamInjectRequest request, Map<Object, Object> returnMap)
	{
		Assert.notNull(request);
		returnMap.put("name", request.getName());
		returnMap.put("id", request.getId());
		// 返回页面
		return "httpParamInject";
	}

url(post和get均支持)

http://localhost:8080/smvc-demo/p/jsonParamInject?{"name":"dingxy","id":1234}

4.异常处理

4.1 JSON接口异常处理

接口一切正常时返回json的code为0,其他异常情况为1。returnCode来自于抛出的BusinessException的errorcode,如果非BusinessException或者未指定errorcode,那么默认返回000001。

	@RequestMapping(value = "throwException", returnType = ReturnType.JSON)
	public void throwException()
	{
		// 直接抛出异常
		throw new BusinessException("101010", "接口抛出异常");
	}

返回值如下

{ "code":1, "data":"", "message":"接口抛出异常", "returnCode":"101010" }

4.2 页面接口异常处理

页面接口发生异常均返回HTTP 500状态码,如果配置了errorpage那么会自动走到500对应页面上。

4.3 访问不存在的接口

返回HTTP 404状态吗,如果配置了errorpage那么会自动走到404对应页面上。

5.业务service即加上注解就是接口,返回值就是json

接口

	@RequestMapping(value = "returnDataObj", returnType = ReturnType.JSON)
	public ReturnDataResponse returnDataObj(String name, Integer id)
	{
		Assert.notNull(name);
		Assert.notNull(id);

		ReturnDataResponse response = new ReturnDataResponse();
		response.setName(name);
		response.setId(id);

		return response;
	}

其中ReturnDataResponse为

public class ReturnDataResponse
{
	private String name;
	private Integer id;

        // getter and setter
}

请求URL

http://localhost:8080/smvc-demo/i/returnDataObj?name=dingxy&id=1234

返回值

{ "code":0, "data":{ "id":1234, "name":"dingxy" }, "message":"", returnCode":"" }

6.文件上传支持

直接将文件input域的名字作为接口方法参数或者请求参数的域。 单文件上传

	@RequestMapping(value = "oneFileUpload", returnType = ReturnType.JSON)
	public String oneFileUpload(MultipartFile file)

多文件上传(参数为MultipartFile数组)

	@RequestMapping(value = "multiFileUpload", returnType = ReturnType.JSON)
	public String multiFileUpload(MultipartFile[] file)

7.拦截器

7.1 注解Intercept:作用目标为类和方法,表示该拦截器在该类或该方法对应的接口上工作

    @Intercept(value = { LoginInterceptor.class })
    public class DemoInterceptInterface
	@RequestMapping(value = "executeTime", returnType = ReturnType.JSON)
	@Clear(value = { LoginInterceptor.class })
	@Intercept(value = { ExecuteTimeInterceptor.class })
	public void executeTime()
	{
		// 该接口会被ExecuteTimeInterceptor拦截
	}

7.2 注解Clear:作用目标方法,表示该拦截器在该方法对应的接口工作

	@RequestMapping(value = "noNeedLogin", returnType = ReturnType.JSON)
	@Clear(value = { LoginInterceptor.class })
	public void noNeedLogin()
	{
		// 该接口执行不需要登陆
	}
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简介

SMVC 是基于java开发的轻量级MVC框架,框架宗旨:方法加上注解即接口。 展开 收起
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