java下載CSV-excel文件

1

                                        <input type="button" value="導出" onclick="window.location.href='${pageContext.request.contextPath}/operationLog/exportCSV.action';"/> 

 

 

2.

package com.bjpowernode.egov.web.action;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.annotation.Resource;

import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import com.bjpowernode.egov.domain.OperationLog;
import com.bjpowernode.egov.service.OperationLogService;
import com.bjpowernode.egov.vo.PaginationVO;

@Controller
@Namespace("/operationLog")
@Scope("prototype")
public class OperationLogAction extends BaseAction {
    
    @Resource(name="operationLogService")
    private OperationLogService operationLogService;
    
    private Integer pageNo;
    private Integer pageSize;
    private String operatorName;
    private String operationType;
    private String startTime;
    private String endTime;
    
    public void setPageNo(Integer pageNo) {
        this.pageNo = pageNo;
    }

    public void setPageSize(Integer pageSize) {
        this.pageSize = pageSize;
    }

    public void setOperatorName(String operatorName) {
        this.operatorName = operatorName;
    }

    public void setOperationType(String operationType) {
        this.operationType = operationType;
    }

    public void setStartTime(String startTime) {
        this.startTime = startTime;
    }

    public void setEndTime(String endTime) {
        this.endTime = endTime;
    }

    
    @Action("exportCSV")
    public String exportCSV() throws Exception{
        String csv = operationLogService.getCsv();
        response.setContentType("application/vnd.ms-excel;charset=GBK");
        response.getWriter().write(csv);
        //response.addHeader("Content-Disposition","attachment;filename=operation_log.csv");
        response.addHeader("Content-Disposition","attachment;filename="+new String("操作日志".getBytes("UTF-8"),"ISO8859-1")+".csv");
        return null;
    }


}

 

 

2

package com.bjpowernode.egov.service.impl;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.List;

import javax.annotation.Resource;

import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.springframework.stereotype.Service;

import com.bjpowernode.egov.dao.OperationLogDao;
import com.bjpowernode.egov.domain.OperationLog;
import com.bjpowernode.egov.service.OperationLogService;
import com.bjpowernode.egov.vo.PaginationVO;

@Service("operationLogService")
public class OperationLogServiceImpl implements OperationLogService {
    
    @Resource(name="operationLogDao")
    private OperationLogDao operationLogDao; 
    
    @Override
    public PaginationVO<OperationLog> getByPage(Integer pageNo,
            Integer pageSize, String operatorName, String operationType,
            String startTime, String endTime) {
        return operationLogDao.getByPage(pageNo,pageSize,operatorName,operationType,startTime,endTime);
    }


    @Override
    public String getCsv() {
        StringBuilder csv = new StringBuilder();
        csv.append("標識");
        csv.append(",");
        csv.append("操作時間");
        csv.append(",");
        csv.append("操作員");
        csv.append(",");
        csv.append("ip地址");
        csv.append(",");
        csv.append("操作模塊");
        csv.append(",");
        csv.append("操作節點");
        csv.append(",");
        csv.append("操作類型");
        csv.append("\n");
        
        List<OperationLog> operationLogs = operationLogDao.getAll();
        for (OperationLog ol : operationLogs) {
            csv.append(ol.getId());
            csv.append(",");
            csv.append(ol.getTime());
            csv.append(",");
            csv.append(ol.getOperator().getName());
            csv.append(",");
            csv.append(ol.getIp());
            csv.append(",");
            csv.append(ol.getModule());
            csv.append(",");
            csv.append(ol.getNode());
            csv.append(",");
            csv.append(ol.getType());
            csv.append("\n");
        }
        return csv.toString();
    }

}