HttpServletRequest内容处理工具类

目录

• HttpServletRequestUtil类

（可转换成json数据，xml数据，map数据）

HttpServletRequestUtil类

import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 * 字符串工具
 */
public class HttpServletRequestUtil {

    /**
     **把request转换成json数据
     **/
    public static String readReqStr(HttpServletRequest request) {
        BufferedReader reader = null;
        StringBuilder sb = new StringBuilder();
        try {
            reader = new BufferedReader(new InputStreamReader(request.getInputStream(), "utf-8"));
            String line = null;
            while ((line = reader.readLine()) != null) {
                sb.append(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (null != reader) {
                    reader.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return sb.toString();
    }

    /**
     **把request转换成xml数据
     **/
    public static String readReqXml(HttpServletRequest request) {
        String inputLine;
        String notityXml = "";
        try {
            while ((inputLine = request.getReader().readLine()) != null) {
                notityXml += inputLine;
            }
            request.getReader().close();
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return notityXml;

    }


    /**
     **把request转换成map数据
     **/
    public static Map<String, String> getRequestParams(HttpServletRequest request) {
        Map<String, String> params = new HashMap<String, String>();
        Map requestParams = request.getParameterMap();
        for (Iterator iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
            }
            params.put(name, valueStr);
        }
        return params;
    }
    
}