Struts2设定系统上下文信息PROVIDER

转自：http://blog.csdn.net/yaerfeng/article/details/8249876

<!--系统上下文信息PROVIDER-->

<bean id="contextPvd" class="com.whatycms.common.struts2.ContextPvdImpl" autowire="byName"/>

package com.whatycms.common.struts2;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServletResponse;public interface ContextPvd {/** * 获得系统绝对路径 如：F:\webapps\CmsSys *  * @param path *            可以传入空串 * @return */public String getAppRealPath(String path);/** * 获得应用绝对根路径 *  * @return */public String getAppRoot();/** * 获得系统根路径 如：/CmsSys *  * @return */public String getAppCxtPath();/** * 获得应用端口号 *  * @return */public int getServerPort();/** * 注销 *  * @return */public void logout();/** * 获得response *  * @return */public HttpServletResponse getResponse();/** * 从Request的Attribute中获取值 *  * @param key * @return */public Object getRequestAttr(String key);/** * 给Request的Attribute中赋值 *  * @param key * @param value */public void setRequestAttr(String key, Object value);/** * 从SESSION中获得值 *  * @param key * @return */public Object getSessionAttr(String key);/** * 给session赋值 *  * @param key * @param value */public void setSessionAttr(String key, Object value);/** * 移除session中的属性 *  * @param key */public void removeAttribute(String key);public Object getApplicationAttr(String key);public void setApplicationAttr(String key, Object value);/** * 获得sessionId *  * @param isCreate *            如果session不存在是否创建 * @return */public String getSessionId(boolean isCreate);/** * 获得访问者IP *  * @return */public String getRemoteIp();/** * 获得访问者PORT *  * @return */public int getRemotePort();/** * 获得访问者URL *  * @return */public String getRequestURL();/** * 获得访问者浏览器 *  * @return */public String getRequestBrowser();/** * 获得访问者操作系统 *  * @return */public String getRequestOs();/** * 获得访问者的代理全部信息 *  * @return */public String getRequestUserAgent();/** * 添加cookie *  * @param cookie */public void addCookie(Cookie cookie);/** * 获取cookie *  * @param name * @return */public Cookie getCookie(String name);/** * 是否是post请求 *  * @return */public boolean isMethodPost();}

package com.whatycms.common.struts2;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.apache.struts2.ServletActionContext;public class ContextPvdImpl implements ContextPvd {public String getAppRealPath(String path) {return ServletActionContext.getServletContext().getRealPath(path);}public String getAppRoot() {return getAppRealPath("/");}public String getAppCxtPath() {return ServletActionContext.getRequest().getContextPath();}public int getServerPort() {return ServletActionContext.getRequest().getServerPort();}public void logout() {HttpSession session = ServletActionContext.getRequest().getSession(false);if (session != null) {session.invalidate();}}public HttpServletResponse getResponse() {return ServletActionContext.getResponse();}public Object getRequestAttr(String key) {return ServletActionContext.getRequest().getAttribute(key);}public void setRequestAttr(String key, Object value) {ServletActionContext.getRequest().setAttribute(key, value);}public Object getSessionAttr(String key) {HttpSession session = ServletActionContext.getRequest().getSession(false);if (session == null) {return null;} else {return session.getAttribute(key);}}public void setSessionAttr(String key, Object value) {HttpSession session = ServletActionContext.getRequest().getSession();session.setAttribute(key, value);}public void removeAttribute(String key) {HttpSession session = ServletActionContext.getRequest().getSession();session.removeAttribute(key);}public Object getApplicationAttr(String key) {return ServletActionContext.getServletContext().getAttribute(key);}public void setApplicationAttr(String key, Object value) {ServletActionContext.getServletContext().setAttribute(key, value);}public String getSessionId(boolean isCreate) {HttpSession session = ServletActionContext.getRequest().getSession(isCreate);if (session == null) {return null;} else {return session.getId();}}public String getRemoteIp() {return ServletActionContext.getRequest().getRemoteAddr();}public int getRemotePort() {return ServletActionContext.getRequest().getRemotePort();}public String getRequestURL() {return ServletActionContext.getRequest().getRequestURL().toString();}public String getRequestBrowser() {String userAgent = getRequestUserAgent();String[] agents = userAgent.split(";");if (agents.length > 1) {return agents[1].trim();} else {return null;}}public String getRequestOs() {String userAgent = getRequestUserAgent();String[] agents = userAgent.split(";");if (agents.length > 2) {return agents[2].trim();} else {return null;}}public String getRequestUserAgent() {HttpServletRequest req = ServletActionContext.getRequest();String userAgent = req.getHeader("user-agent");return userAgent;}public void addCookie(Cookie cookie) {ServletActionContext.getResponse().addCookie(cookie);}public Cookie getCookie(String name) {Cookie[] cookies = ServletActionContext.getRequest().getCookies();if (cookies != null) {for (Cookie c : cookies) {if (c.getName().equals(name)) {return c;}}}return null;}public boolean isMethodPost() {String method = ServletActionContext.getRequest().getMethod();if ("post".equalsIgnoreCase(method)) {return true;} else {return false;}}}