com.roncoo.controller.BaseController.java Source code

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Here is the source code for com.roncoo.controller.BaseController.java

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/*
 * Copyright 2015-2102 RonCoo(http://www.roncoo.com) Group.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.roncoo.controller;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.web.context.ContextLoader;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.io.PrintWriter;
import java.math.BigDecimal;
import java.net.InetAddress;
import java.net.URLDecoder;
import java.net.UnknownHostException;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

/**
 * <b>:
 * </b>
 * @author  Peter
 * <a href="http://www.roncoo.com">(www.roncoo.com)</a>
 */
public abstract class BaseController {

    private static final Log log = LogFactory.getLog(BaseController.class);

    private static final String UTF_8 = "utf-8";

    private static final String GBK = "GBK";

    /**
     * ?request
     * 
     * @return
     */
    protected HttpServletRequest getRequest() {
        return ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
    }

    /**
     * ?session
     * 
     * @return
     */
    protected HttpSession getSession() {
        return ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest().getSession();
    }

    /**
     * ?application
     * 
     * @return
     */
    protected ServletContext getApplication() {
        return ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest().getSession()
                .getServletContext();
    }

    protected ServletContext getServletContext() {
        return ContextLoader.getCurrentWebApplicationContext().getServletContext();
    }

    public String getString(String name) {
        return getString(name, null);
    }

    public String getString(String name, String defaultValue) {
        String resultStr = getRequest().getParameter(name);
        if (resultStr == null || "".equals(resultStr) || "null".equals(resultStr)
                || "undefined".equals(resultStr)) {
            return defaultValue;
        } else {
            return resultStr;
        }
    }

    /**
     * ???null""
     * 
     * @return
     */
    public Map<String, Object> getParamMap_NullStr(Map map) {
        Map<String, Object> parameters = new HashMap<String, Object>();
        Set keys = map.keySet();
        for (Object key : keys) {
            String value = this.getString(key.toString());
            if (value == null) {
                value = "";
            }
            parameters.put(key.toString(), value);
        }
        return parameters;
    }

    public int getInt(String name) {
        return getInt(name, 0);
    }

    public int getInt(String name, int defaultValue) {
        String resultStr = getRequest().getParameter(name);
        if (resultStr != null) {
            try {
                return Integer.parseInt(resultStr);
            } catch (Exception e) {
                return defaultValue;
            }
        }
        return defaultValue;
    }

    public BigDecimal getBigDecimal(String name) {
        return getBigDecimal(name, null);
    }

    public BigDecimal getBigDecimal(String name, BigDecimal defaultValue) {
        String resultStr = getRequest().getParameter(name);
        if (resultStr != null) {
            try {
                return BigDecimal.valueOf(Double.parseDouble(resultStr));
            } catch (Exception e) {
                return defaultValue;
            }
        }
        return defaultValue;
    }

    /**
     * ????HttpRequest?String?"" .
     * 
     * @param key
     *            .
     * @return String .
     */
    public String getString_UrlDecode_UTF8(String key) {
        try {
            return URLDecoder.decode(this.getString(key), UTF_8);
        } catch (Exception e) {
            return "";
        }

    }

    public String getString_UrlDecode_GBK(String key) {
        try {
            return new String(getString(key.toString()).getBytes("GBK"), "UTF-8");
        } catch (Exception e) {
            return "";
        }

    }

    /**
     * ?IP?
     * 
     * @return
     */
    public String getIpAddr(HttpServletRequest request) {
        String ipAddress = null;
        ipAddress = request.getHeader("x-forwarded-for");
        if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getHeader("Proxy-Client-IP");
        }
        if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getRemoteAddr();
            if (ipAddress.equals("127.0.0.1") || ipAddress.equals("0:0:0:0:0:0:0:1")) {
                // ????IP
                InetAddress inet = null;
                try {
                    inet = InetAddress.getLocalHost();
                } catch (UnknownHostException e) {
                    e.printStackTrace();
                }
                ipAddress = inet.getHostAddress();
            }

        }

        // ?IPIP,IP','
        if (ipAddress != null && ipAddress.length() > 15) {
            if (ipAddress.indexOf(",") > 0) {
                ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
            }
        }
        return ipAddress;
    }

    /**
     * ?refererUrl
     */
    public String getRefererUrl(HttpServletRequest request) {
        return request.getHeader("referer");
    }

    public String readRequest(HttpServletRequest request) throws IOException {
        StringBuilder sb = new StringBuilder();
        try {
            String line;
            while ((line = request.getReader().readLine()) != null) {
                sb.append(line);
            }
        } finally {
            request.getReader().close();
        }
        return sb.toString();
    }

    public void write(HttpServletResponse response, String s) {
        PrintWriter out = null;
        try {
            out = response.getWriter();
            out.print(s);
        } catch (IOException e) {
            log.error("?", e);
        } finally {
            out.close();
        }
    }
}