一个非常简单的MVC
框架，实现了类似Spring MVC的基本功能。
1、包括自动扫描绑定映射路径，只要在
web.xml中指定扫描包，系统启动后会将请求url绑定到指定的处理方法上。如：
在
web.xml中定义如下：
<context-param>
<param-name>ScanPackage</param-name>
<param-value>com.mvc.controller</param-value>
</context-param>
容器在启动时候，会将com.mvc.controller下所有映射路径绑定处理方法上，假如在扫描包中定义下列类
:
import
javax.imageio.ImageIO;
import
javax.servlet.ServletOutputStream;
import
javax.servlet.http.Cookie;
import
javax.servlet.http.HttpServletRequest;
import
javax.servlet.http.HttpServletResponse;
import
javax.servlet.http.HttpSession;
import com.hxw.simple.light.mvc.annotation.MappingMethodAnnotation;
import com.hxw.simple.light.mvc.view.SimpleModelView;
import com.mvc.verification.VerificationCode;
public class LoginController {
@MappingMethodAnnotation(mappingMethod = "/login.do")
public String login(HttpServletRequest request, HttpServletResponse response) {
return "login/main";
}
@MappingMethodAnnotation(mappingMethod = "/loginvm.do")
public SimpleModelView loginView(HttpServletRequest request,
HttpServletResponse response) {
SimpleModelView mv = new SimpleModelView("login/mainmv");
Map<String, String> m = new HashMap<String, String>();
m.put("beij", "北京");
m.put("sha", "上海");
m.put("nanj", "南京");
mv.setAttribute("city", m);
return mv;
}
@MappingMethodAnnotation(mappingMethod = "/Verify.do")
public void service(HttpServletRequest arg0, HttpServletResponse arg1)
throws IOException {
HttpServletRequest request = (HttpServletRequest) arg0;
HttpServletResponse response = (HttpServletResponse) arg1;
response.setContentType("image/jpeg");
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
VerificationCode vCode = new VerificationCode();
BufferedImage bufferImage = vCode.getImageData();
HttpSession session = request.getSession();
response.addCookie(new Cookie("JSSESIONID", session.getId()));
ServletOutputStream responseOutputStream = response.getOutputStream();
ImageIO.write(bufferImage, "JPEG", responseOutputStream);
responseOutputStream.flush();
responseOutputStream.close();
}
}
那么在接到url请求如：http
://localhost
:8080/TestSimpleMVC/loginvm.do
会调用指定的方法处理。
2、支持视图定义，在
web.xml定义了视图路径后：
<servlet>
<servlet-name>DelegateForwardServlet</servlet-name>
<servlet-class>com.hxw.simple.light.mvc.servlet.DelegateForwardServlet</servlet-class>
<init-param>
<param-name>prefix</param-name>
<param-value>/
WEB-INF/view/</param-value>
</init-param>
<init-param>
<param-name>suffix</param-name>
<param-value>.jsp</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>DelegateForwardServlet</servlet-name>
<url-pattern>/SYS_FORWARD_URL.fo</url-pattern>
</servlet-mapping>
只需在执行完方法后，返回字符串：如return "login/main"就会跳转到指定视图，还可以在视图中用EL表单式访问modelview数据，例子如：
SimpleModelView mv = new SimpleModelView("login/mainmv");
Map<String, String> m = new HashMap<String, String>();
m.put("beij", "北京");
m.put("sha", "上海");
m.put("nanj", "南京");
mv.setAttribute("city", m);
return mv;
3、支持数据参数自动绑定如：
@ParamAttribute(type = ParamaAttributeType.REQUEST, key = "userPassword") String s,
@ParamAttribute(type = ParamaAttributeType.SESSION, key = "11212") String s1,
@ParamAttribute(type = ParamaAttributeType.SERVLETCONTEXT, key = "32312") String s2,
@ParamAttribute(type = ParamaAttributeType.REQUEST, key = "userNames") String[] s3
系统根据参数指定的范围，这指定范围内赋值到参数上，你还可以直接使用
javabean做参数绑定，如：
public class User extends PaginatedHelper {
private static final long serialVersionUID = -8225389551152428829L;
private String userName;
private String userPassword;
public User() {
super();
}
public User(String userName, String userPassword) {
super();
this.userName = userName;
this.userPassword = userPassword;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
在方法上带上 Uer user后，属性名称相同的数据就会赋值到
javabean上。不必再使用繁琐的user.setUserName(request.getParameter("userName"));
3、简便的jdbc操作
有查询模板QueryTemplate,命名查询NamedQueryTemplate及bean作为参数的BeanQueryTemplate等。支持返回
javabean类型，
javabean列表，
MAP类型，map列表类型，统计结果queryForInt等。
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