ImageTool.java
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package com.xiniunet.web.tool;
import com.xiniunet.foundation.request.FilePathGetRequest;
import com.xiniunet.foundation.response.FilePathGetResponse;
import com.xiniunet.foundation.service.FoundationService;
import com.xiniunet.framework.security.Passport;
import com.xiniunet.framework.util.SettingUtil;
import com.xiniunet.framework.util.SpringContext;
import com.xiniunet.framework.util.auth.LocalData;
import com.xiniunet.framework.util.cache.CacheTool;
/**
 * Created by Administrator on 2015/5/13.
 */
public class ImageTool {
    /**
     * 从Spring中取得可以获得用户对象的工具类
     */
    private static final FoundationService foundationService =
            (FoundationService) SpringContext.getApplicationContext().getBean(FoundationService.class);
    private static final CacheTool cache = (CacheTool) SpringContext.getApplicationContext().getBean(CacheTool.class);
    private static final String defaultPath= SettingUtil.getProperty("config.properties", "aliyun.img.url") + "common/avatar_default_big.png";
    public static String getImagePath(Long imageId, Passport passport){
        if (imageId == null) {
            return defaultPath;
        }
        String url = defaultPath;
        if(cache.get("IMAGE", imageId) == null ) {
            FilePathGetRequest filePathGetByTenantRequest = new FilePathGetRequest();
            filePathGetByTenantRequest.setId(imageId);
            FilePathGetResponse filePathGetByTenantResponse = foundationService.getFilePath(filePathGetByTenantRequest, passport);
            if (!filePathGetByTenantResponse.hasError()) {
                url = filePathGetByTenantResponse.getUrl();
            }
            if (url == null) {
                return defaultPath;
            }
            cache.push("IMAGE", imageId, url);
        } else {
            url = (String) cache.get("IMAGE", imageId);
        }
        return url;
    }
    public static String getPath(Long imageId){
        return getImagePath(imageId, LocalData.getCurrentPassport());
    }
}