webwork自带的RestfulActionMapper弱了点

Webwork 自带的 RestfulActionMapper弱了点

首先， 像图片，js，css 等资源文件不大好印射（会出现 action 找不到错误)

不支持namespace

反向解析url 时，忽略了除id 以外的变量

于是我写了一个稍微好点的 RestfulActionMapper, 也符合了我现在项目的要求

其代码如下

java 代码

package com.longthsoft.hellomobile.webwork;

import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import java.util.Map.Entry;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.opensymphony.webwork.RequestUtils;
import com.opensymphony.webwork.dispatcher.mapper.ActionMapper;
import com.opensymphony.webwork.dispatcher.mapper.ActionMapping;
import com.opensymphony.webwork.dispatcher.mapper.RestfulActionMapper;
import com.opensymphony.xwork.config.ConfigurationManager;
import com.opensymphony.xwork.config.RuntimeConfiguration;

public class BetterRestfulActionMapper implements ActionMapper {

    protected static final Log LOG = LogFactory.getLog(RestfulActionMapper.class);
    private static final String ID = "id";

    public ActionMapping getMapping(HttpServletRequest request) {
        String uri = RequestUtils.getServletPath(request);
        if (uri.indexOf('.', uri.length() - 5) != -1) {
            return null;
        }

        int pos1 = uri.indexOf('/', 1);
        if (pos1 == -1) {
            return null;
        }
        String part1 = uri.substring(1, pos1);

        String namespace = "";
        String actionName;
        int pos2 = uri.indexOf('/', pos1 + 1);
        if (pos2 == -1) {
            actionName = part1;
            uri = uri.substring(pos1 + 1);
        } else {
            RuntimeConfiguration config = ConfigurationManager.getConfiguration()
                .getRuntimeConfiguration();
            String part2 = uri.substring(pos1 + 1, pos2);
            if (config.getActionConfigs().containsKey("/" + part1)) {
                namespace = "/" + part1;
                actionName = part2;
                uri = uri.substring(pos2 + 1);
            } else {
                actionName = part1;
                uri = uri.substring(pos1 + 1);
            }
        }

        List<String> list = new ArrayList<String>(Arrays.asList(uri.split("/")));
        if (list.size() % 2 == 1) {
            list.add(0, ID);
        }
        HashMap<String, String> params = new HashMap<String, String>();
        for (int i = 0; i < list.size() / 2; ++i) {
            try {
                String name = URLDecoder.decode(list.get(2 * i), "UTF-8");
                String value = URLDecoder.decode(list.get(2 * i + 1), "UTF-8");
                params.put(name, value);
            } catch (Exception ex) {
                LOG.warn(ex);
            }
        }

        return new ActionMapping(actionName, namespace, "", params);
    }

    public String getUriFromActionMapping(ActionMapping mapping) {
        String uri = mapping.getNamespace() + "/" + mapping.getName();
        Map params = mapping.getParams();
        if (params.containsKey(ID)) {
            uri += "/" + params.get(ID);
        }
        for (Object o : mapping.getParams().entrySet()) {
            Entry entry = (Entry) o;
            String name = (String) entry.getKey();
            if (!name.equals(ID)) {
                uri += "/" + name + "/" + entry.getValue();
            }
        }
        return uri;
    }
}