Springboot动态生成网站地图sitemap教程
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发现自从换了一套博客程序后,之前搜索引擎抓取的链接都失效了,所以才有此想法采用java生成动态的网站地图。
步骤一 创建实体
SiteMapVo
package com.my.blog.website.modal.Vo;
import com.my.blog.website.utils.SiteMapUtils;
import org.thymeleaf.util.DateUtils;
import java.util.Date;
import java.util.Locale;
/**
* @author Jesse-liu
* @description: 网站地图entity
* @date 2020/5/7 9:09
*/
public class SiteMapVo {
/**
* url https://www.xxx.com
*/
private String loc;
/**
* 最后更新时间 yyyy-MM-dd
*/
private Date lastmod;
/**
* 更新速度 always hourly daily weekly monthly yearly never
*/
private String changefreq;
/**
* 权重 1.0 0.9 0.8
*/
private String priority;
public String getLoc() {
return loc;
}
public void setLoc(String loc) {
this.loc = loc;
}
public Date getLastmod() {
return lastmod;
}
public void setLastmod(Date lastmod) {
this.lastmod = lastmod;
}
public String getChangefreq() {
return changefreq;
}
public void setChangefreq(String changefreq) {
this.changefreq = changefreq;
}
public String getPriority() {
return priority;
}
public void setPriority(String priority) {
this.priority = priority;
}
public SiteMapVo() {
}
public SiteMapVo(String loc) {
this.loc = loc;
this.lastmod = new Date();
this.changefreq = SiteMapUtils.CHANGEFREQ_ALWAYS;
this.priority = "1.0";
}
public SiteMapVo(String loc, Date lastmod, String changefreq, String priority) {
this.loc = loc;
this.lastmod = lastmod;
this.changefreq = changefreq;
this.priority = priority;
}
@Override
/** 重写 toString 适应xml格式 */
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("<url>");
sb.append("<loc>" + loc + "</loc>");
sb.append("<lastmod>" + DateUtils.format(lastmod, "yyyy-MM-dd", Locale.SIMPLIFIED_CHINESE) + "</lastmod>");
sb.append("<changefreq>" + changefreq + "</changefreq>");
sb.append("<priority>" + priority + "</priority>");
sb.append("</url>");
return sb.toString();
}
}
步骤二 创建工具类
SiteMapUtils
package com.my.blog.website.utils;
import com.my.blog.website.constant.WebConst;
import com.my.blog.website.modal.Vo.ContentVo;
import com.my.blog.website.modal.Vo.SiteMapVo;
import com.my.blog.website.service.IContentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.util.List;
/**
* @author Jesse-liu
* @description: java生成sitemap网站地图工具类
* @date 2020/5/7 10:25
*/
@Component
public class SiteMapUtils {
public final static String BEGIN_DOC = "<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">";
public final static String END_DOC = "</urlset>";
public final static String CHANGEFREQ_ALWAYS = "always";
public final static String CHANGEFREQ_HOURLY = "hourly";
public final static String CHANGEFREQ_DAILY = "daily";
public final static String CHANGEFREQ_WEEKLY = "weekly";
public final static String CHANGEFREQ_MONTHLY = "monthly";
public final static String CHANGEFREQ_YEARLY = "yearly";
public final static String CHANGEFREQ_NEVER = "never";
@Autowired
private IContentService contentsService;
public String getBlogSiteMap() {
StringBuffer sb = new StringBuffer();
sb.append(BEGIN_DOC);
sb.append(new SiteMapVo(WebConst.initConfig.get("site_url")));
List<ContentVo> contentList = contentsService.findContentList();
contentList.forEach(entity -> {
sb.append(new SiteMapVo(Commons.permalink(entity), DateKit.dateFormat(Commons.fmtdate(entity.getModified(), "yyyy-MM-dd"), "yyyy-MM-dd"), CHANGEFREQ_MONTHLY, "0.9"));
});
sb.append(END_DOC);
return sb.toString();
}
public String getBzSiteMap() {
StringBuffer sb = new StringBuffer();
sb.append(BEGIN_DOC);
sb.append(new SiteMapVo(WebConst.initConfig.get("site_url")));
sb.append(END_DOC);
return sb.toString();
}
}
步骤三
Web层添加请求控制器
/**
* @return : java.lang.String
* @author Jesse-liu
* @date 2020/5/7
* @description: 动态生成网站地图sitemap
**/
@GetMapping(value = {"sitemap.xml", "sitemap"})
public void getSiteMap(HttpServletResponse response) throws IOException {
response.setCharacterEncoding("UTF-8");
response.setContentType(MediaType.APPLICATION_XML_VALUE);
response.getWriter().append(siteMapUtils.getBlogSiteMap());
}
完美收工!!!
这。。。不是直接从数据库拿链接吗,问题是链接怎么生成。。。