logo.java

是一个网站的博客系统

package com.opensource.blog.web.action;

import javax.servlet.http.*;

import org.apache.commons.lang.*;
import org.apache.struts.action.*;
import com.opensource.blog.exception.*;
import com.opensource.blog.model.*;
import com.opensource.blog.service.*;
import com.opensource.blog.service.cache.app.*;
import com.opensource.blog.web.form.*;
import com.opensource.blog.web.servlet.*;

public class Logo
    extends BaseAction {

  private BlogService blogService;

  private BlogCache blogCache;

  public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm,
                               HttpServletRequest servletRequest,
                               HttpServletResponse servletResponse) {
    ActionMessages errors = new ActionMessages();
    LogoForm form = (LogoForm) actionForm;
    UserSession us = this.getUserSession(servletRequest);
    if (form.getAction().equalsIgnoreCase("up")) {
      form.setAction("updo");
      String url = "";
      if (StringUtils.isBlank(us.getBlog().getLogourl())) {
        url = "http://";
      }
      else {
        url = us.getBlog().getLogourl();
      }
      form.setLogourl(url);
      return actionMapping.findForward("logo");
    }
    if (form.getAction().equalsIgnoreCase("updo")) {
      Blog blog = us.getBlog();
      blog.setLogourl(form.getLogourl());
      try {
        blog = this.getBlogService().saveBlog(blog);
      }
      catch (BlogException ex) {
        errors.add("error.blogblog.upinfo", new ActionMessage("error.blogblog.upinfo"));
        saveErrors(servletRequest, errors);
        return actionMapping.findForward("error");
      }
      this.saveUserSession(servletRequest, blog);
      this.getBlogCache().removeFromCache(blog.getUsername());
      ActionForward f = new ActionForward("/blogInfoHigh.do", true);
      return f;
    }
    if (form.getAction().equalsIgnoreCase("del")) {
      Blog blog = us.getBlog();
      blog.setLogourl("");
      try {
        blog = this.getBlogService().saveBlog(blog);
      }
      catch (BlogException ex) {
        errors.add("error.blogblog.upinfo", new ActionMessage("error.blogblog.upinfo"));
        saveErrors(servletRequest, errors);
        return actionMapping.findForward("error");
      }
      this.saveUserSession(servletRequest, blog);
      this.getBlogCache().removeFromCache(blog.getUsername());
      ActionForward f = new ActionForward("/blogInfoHigh.do", true);
      return f;
    }
    return actionMapping.findForward("error");
  }

  public BlogService getBlogService() {
    return blogService;
  }

  public BlogCache getBlogCache() {
    return blogCache;
  }

  public void setBlogService(BlogService blogService) {
    this.blogService = blogService;
  }

  public void setBlogCache(BlogCache blogCache) {
    this.blogCache = blogCache;
  }
}