Spring+SpringMVC+mybatis+redis（三）

redis模板类（RedisClientTemplate）方法有点多，字数到了。新建一章

其实最重要的都贴出来完了。

10.ParameterMap（一个参数拦截器，我觉得挺好用的）

package com.lrs.util;import java.io.UnsupportedEncodingException;import java.util.Collection;import java.util.HashMap;import java.util.Iterator;import java.util.Map;import java.util.Set;import javax.servlet.http.HttpServletRequest;/** * 拦截所有参数 * @author Administrator * */@SuppressWarnings("rawtypes")public class ParameterMap extends HashMap implements Map{    /**     *      */    private static final long serialVersionUID = 1L;    Map map = null;    HttpServletRequest request;    public ParameterMap(){        map=new HashMap();    }    @SuppressWarnings("unchecked")    public ParameterMap(HttpServletRequest request){        this.request=request;        try {            request.setCharacterEncoding("utf-8");        } catch (UnsupportedEncodingException e) {            e.printStackTrace();        }        Map Proerties = request.getParameterMap();        Map returnMap = new HashMap();        Iterator entries = Proerties.entrySet().iterator();        Map.Entry entry;        while(entries.hasNext()){            String name="";            String value="";            entry = (Entry) entries.next();            name = (String) entry.getKey();            Object valueObject = entry.getValue();            if(valueObject == null){                value="";            }else if(valueObject instanceof String[]){                String[] values = (String[]) valueObject;                for(int i=0;i<values.length;i++){                    value = values[i]+","+value;                }                value=value.substring(0,value.length()-1);            }else{                value=valueObject.toString();            }            returnMap.put(name, value);        }        returnMap.put("SessionID", request.getSession().getId());        map=returnMap;    }    @Override    public Object get(Object key) {        Object obj = null;        if(map.get(key) instanceof Object[]){            Object[] arr = (Object[]) map.get(key);            obj = request==null?arr:(request.getParameter((String) key) == null?arr:arr[0]);        }else{            obj = map.get(key);        }        return obj;    }    public String getString(Object key){        String str = "";        if(get(key) != null){            str = String.valueOf(get(key));        }        return str;    }    @SuppressWarnings("unchecked")    @Override    public Object put(Object key, Object value) {        if(value == null){            return map.put(key, "");        }        return map.put(key, value);    }    @SuppressWarnings("unchecked")    public Object putObject(Object key,Object value){        return map.put(key, value);    }    @Override    public Object remove(Object key) {        return map.remove(key);    }    @Override    public void clear() {        map.clear();    }    @Override    public boolean containsKey(Object key) {        return map.containsKey(key);    }    @Override    public boolean containsValue(Object value) {        return map.containsValue(value);    }    @Override    public Set entrySet() {        return map.entrySet();    }    @Override    public boolean isEmpty() {        return map.isEmpty();    }    @Override    public Set keySet() {        return map.keySet();    }    @SuppressWarnings("unchecked")    @Override    public void putAll(Map m) {        map.putAll(m);    }    @Override    public int size() {        return map.size();    }    @Override    public Collection values() {        return map.values();    }}

11.BaseController(所有控制器的父类，好的地方是过滤参数的方法)

package com.lrs.controller;import javax.servlet.ServletContext;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpSession;import org.springframework.web.context.ContextLoader;import org.springframework.web.context.WebApplicationContext;import org.springframework.web.context.request.RequestContextHolder;import org.springframework.web.context.request.ServletRequestAttributes;import org.springframework.web.servlet.ModelAndView;import com.tyro.util.MyLogger;import com.tyro.util.ParameterMap;public class BaseController {    protected MyLogger logger = MyLogger.getLogger(this.getClass());    /**     * springMVC 获取requset     *      * @return     */    public HttpServletRequest getRequest() {        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes())                .getRequest();        return request;    }    /**     * 获取session     * @return     */    public HttpSession getSession(){        HttpSession session = this.getRequest().getSession();        return session;    }    /**     * 获取ServletContext     * @return     */    public ServletContext getServletContent() {//        ServletContext application= request.getServletContext();        WebApplicationContext webApplicationContext = ContextLoader.getCurrentWebApplicationContext();            ServletContext servletContext = webApplicationContext.getServletContext();        return servletContext;    }    /**     * 获取ModelAndView     * @return     */    public ModelAndView getModelAndView(){        return new ModelAndView();    }    /**     * 过滤参数     *      * @return     */    public ParameterMap getParameterMap() {        return new ParameterMap(this.getRequest());    }    /**     * 获取ip     *      * @return     */    public String getRemortIP() {        HttpServletRequest request = this.getRequest();        String ip = "";        if (request.getHeader("x-forwarded-for") == null) {            ip = request.getRemoteAddr();        } else {            ip = request.getHeader("x-forwarded-for");        }        return ip;    }    /**     * 获取ip     * @param request     * @return     */    public String getIpAddr() {        HttpServletRequest request = this.getRequest();        String ip = request.getHeader("x-forwarded-for");        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {            ip = request.getHeader("Proxy-Client-IP");        }        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {            ip = request.getHeader("WL-Proxy-Client-IP");        }        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {            ip = request.getRemoteAddr();        }        return ip;    }    public static void printLogger(MyLogger logger,String message){        logger.info(message);    }}

11.测试类

package com.tyro.controller;import javax.annotation.Resource;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import com.tyro.redis.RedisClientTemplate;import com.tyro.util.ParameterMap;@RequestMapping(value="/redis")@Controllerpublic class RedisTestController extends BaseController{    @Resource(name="redisClientTemplate")    RedisClientTemplate redisClient;    /**     *      * @return     */    @RequestMapping("/test")    @ResponseBody    public Object test(){        ParameterMap pm = this.getParameterMap();        if(pm != null && pm.size() > 0)        for(Object key: pm.keySet()){            //传什么上来就缓存什么            redisClient.set(key.toString(),pm.getString(key));        }        //打印        for(Object key: pm.keySet()){            //传什么上来就缓存什么            System.out.println("获取缓存key"+key.toString()+"="+redisClient.get(key.toString()));        }        return pm;    }}

请求地址

2.png

控制台

1.png

redis客户端看看

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OK 测试完毕。最后贴上工程目录结构

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