package com.matrix.system.hive.plugin.util;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpSession;
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import com.matrix.core.tools.StringUtils;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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/**
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* session工具，获取对象，转换对象
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* @author Ron
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* @createTime 2014.08.30
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*/
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public class SessionUtils {
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/**
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* 从session取值
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*
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* @param request
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* @param key
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* @return
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*/
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public static Object getSessionValue(HttpServletRequest request, String key) {
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if (StringUtils.isBlank(key) || request == null) {
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return null;
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}
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Object obj = request.getSession().getAttribute(key);
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return obj;
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}
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/**
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* 从session取值
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*
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* @param request
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* @param key
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* @return
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*/
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public static Object getSessionValue(HttpServletRequest request, String key, Object defaultValue) {
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if (StringUtils.isBlank(key) || request == null) {
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return defaultValue;
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}
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Object obj = request.getSession().getAttribute(key);
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return obj;
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}
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/**
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* 存放值到session
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*
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* @param request
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* @param key
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* @param value
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*/
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public static void setSessionValue(HttpServletRequest request, String key, Object value) {
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if (StringUtils.isBlank(key) || request == null || value == null) {
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return;
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}
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request.getSession(true).setAttribute(key, value);
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param request
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* @param key
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* @return
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*/
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@SuppressWarnings("unchecked")
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public static <T> T getSessionObject(HttpServletRequest request, String key) {
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Object obj = getSessionValue(request, key);
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if (obj == null) {
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return null;
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} else {
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return (T) obj;
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}
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param request
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* @param key
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* @return
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*/
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@SuppressWarnings("unchecked")
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public static <T> T getSessionObject(HttpServletRequest request, String key, Object defaultValue) {
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Object obj = getSessionValue(request, key);
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if (obj == null) {
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obj = defaultValue;
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}
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return (T) obj;
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param request
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* @param key
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* @return
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*/
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public static Long getSessionLong(HttpServletRequest request, String key) {
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Object obj = getSessionValue(request, key);
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if (obj == null) {
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return Long.valueOf(0);
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} else {
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return Long.valueOf(obj.toString());
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}
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param request
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* @param key
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* @return
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*/
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public static Long getSessionLong(HttpServletRequest request, String key, Long defaultValue) {
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Object obj = getSessionValue(request, key);
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if (obj == null) {
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return defaultValue;
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}
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return Long.valueOf(obj.toString());
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}
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/**
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* 把session中key所对应的对象移除
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* @param request
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* @param key
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*/
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public static void removeSessionObject(HttpServletRequest request, String key) {
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if (StringUtils.isNotBlank(key)) {
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request.getSession().removeAttribute(key);
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}
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}
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/**
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* 获取session对象
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*/
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public static HttpSession getSession() {
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HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
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return request.getSession();
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param key
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* @return
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*/
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@SuppressWarnings("unchecked")
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public static <T> T getSessionObject(String key) {
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Object obj = getSession().getAttribute(key);
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if (obj == null) {
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return null;
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}
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return (T) obj;
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param key
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* @return
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*/
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@SuppressWarnings("unchecked")
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public static <T> T getSessionObject(String key, Object defaultValue) {
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Object obj = getSession().getAttribute(key);
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if (obj == null) {
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obj = defaultValue;
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}
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return (T) obj;
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param key
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* @return
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*/
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public static String getSessionString(String key) {
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Object obj = getSession().getAttribute(key);
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if (obj == null) {
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return null;
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}
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return (String) obj;
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param key
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* @return
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*/
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public static String getSessionString(String key, String defaultValue) {
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Object obj = getSession().getAttribute(key);
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if (obj == null) {
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return defaultValue;
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}
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return (String) obj;
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param key
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* @return
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*/
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public static Long getSessionLong(String key) {
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Object obj = getSession().getAttribute(key);
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if (obj == null) {
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return Long.valueOf(0);
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}
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return Long.valueOf(obj.toString());
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}
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/**
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* 把session中Object对象转换成为bean
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*
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* @param <T>
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* @param key
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* @return
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*/
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public static Long getSessionLong(String key, Long defaultValue) {
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Object obj = getSession().getAttribute(key);
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if (obj == null) {
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return defaultValue;
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}
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return Long.valueOf(obj.toString());
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}
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/**
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* session失效
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*/
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public static void invalidate(HttpServletRequest request) {
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request.getSession().invalidate();
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}
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}
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