Java XLSTransformer生成excel文件

大家好，又见面了，我是你们的朋友全栈君。

  把页面的数据导出excel 数据  

然后进入 struts2 action 

          <action name="generateExcel" class="com.xx.emidas.activity.activity.ajax.XLSTransformerGenerateExcelAction">
         </action>

package com.xx.emidas.activity.activity.ajax;

import com.xx.combiz.spring.util.LionConfigUtils;
import com.xx.emidas.activity.external.util.XLSTransformerGenerateExcelUtil;
import com.xx.emidas.activity.picture.BaseAction;







import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.apache.struts2.ServletActionContext;








import java.io.File;
import java.io.IOException;
import java.io.Writer;
import java.util.*;

import javax.servlet.http.HttpServletResponse;


public class XLSTransformerGenerateExcelAction extends BaseAction {
	
	private String url;
	private String name;
    /**活动ID*/
    private int activityId;

    /**查询起始日期*/
    private String queryStart;

    /**查询结束日期*/
    private String queryend;
	/**
	 * 
	 */
	private static final long serialVersionUID = 2058361031969467470L;

	@Override
	public String execute() throws Exception {
        try {
        	//url="http://localhost:8080/activities/activity/newClickdate"+"?activityId="+activityId+"&queryStart="+queryStart+"&queryend="+queryend;
        	  url = LionConfigUtils.getProperty("emidas-event.activity.data.excelExport", "0");
        	  url+="?activityId="+activityId+"&queryStart="+queryStart+"&queryend="+queryend;
        	XLSTransformerGenerateExcelUtil.ExportExcel(url, name);
		} catch (Exception e) {
			
		}
       return null;
	}

	public String getUrl() {
		return url;
	}

	public void setUrl(String url) {
		this.url = url;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getActivityId() {
		return activityId;
	}

	public void setActivityId(int activityId) {
		this.activityId = activityId;
	}

	public String getQueryStart() {
		return queryStart;
	}

	public void setQueryStart(String queryStart) {
		this.queryStart = queryStart;
	}

	public String getQueryend() {
		return queryend;
	}

	public void setQueryend(String queryend) {
		this.queryend = queryend;
	}
	
	
	
	

}

这里的 url  是你的 需要数据的页面 或者 action  图片也可以显示的 

这里是我自己封装的XLSTransformer的工具类 

package com.xx.emidas.activity.external.util;


import java.io.IOException;
import java.io.Writer;

import javax.servlet.http.HttpServletResponse;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.apache.struts2.ServletActionContext;
public class XLSTransformerGenerateExcelUtil {
	/**
	 * 导出页面数据生成 xlsx
	 * @author hongwang.zhang
	 * @date 20150826
	 * @param path  url路径
	 * @param name  excel名称
	 */
	public static void  ExportExcel( String path,String name){
		CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpGet httppost = new HttpGet(path);
        try {
            // 发送请求，返回响应
            HttpResponse response = httpClient.execute(httppost);

            // 打印响应信息
            HttpEntity entity = response.getEntity();
            HttpServletResponse x = ServletActionContext.getResponse();
            x.setContentType("application/vnd.ms-excel");  
            String titlename="data"; 
            if(null!=name){
            	titlename=name;
            }
            x.setHeader("Content-Disposition", "attachment;filename="+new String((titlename).getBytes("gbk"),"iso8859-1")+".xlsx");  
              Writer w = null;
              w = x.getWriter();
              w.write(EntityUtils.toString(entity));
              w.flush();
              
              EntityUtils.consume(entity);
            //
        } catch (ClientProtocolException e) {
            // 协议错误
            e.printStackTrace();
        } catch (IOException e) {
            // 网络异常
            e.printStackTrace();
        }
	}
	
	

}

导出来的基本会和页面上的数据 样式一样的，这里我自己做了一个独立的页面 对样式做了一些修改 导出的excel 和页面上的一模一样 

是不是很吊呢  这里就是大概的代码了，如果有什么 不懂的可以在留言