130 lines
3.5 KiB
Java
130 lines
3.5 KiB
Java
package com.xwbing.service.rest;
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import com.xwbing.exception.BusinessException;
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import com.xwbing.util.QRCodeUtil;
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import com.xwbing.util.RestMessage;
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import com.xwbing.util.ZipUtil;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.core.io.ClassPathResource;
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import org.springframework.stereotype.Service;
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import javax.servlet.http.HttpServletResponse;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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/**
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* 项目名称: boot-module-demo
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* 创建时间: 2017/11/17 13:36
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* 作者: xiangwb
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* 说明:
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*/
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@Service
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public class QRCodeZipService {
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private final Logger logger = LoggerFactory.getLogger(QRCodeZipService.class);
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/**
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* 生成默认长度的二维码
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*
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* @param name 图片名
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* @param text 二维码内容
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* @return
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*/
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public RestMessage createQRCode(String name, String text) {
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RestMessage result = new RestMessage();
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String path = getPath();
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File output = new File(path + File.separator + name + ".png");
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QRCodeUtil.createCode(text, output);
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result.setSuccess(true);
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result.setMessage("生成二维码成功");
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return result;
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}
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/**
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* 解析二维码
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*
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* @param file
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* @return
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*/
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public RestMessage decode(File file) {
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RestMessage result = new RestMessage();
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try {
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String decode = QRCodeUtil.decode(file);
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result.setData(decode);
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result.setSuccess(true);
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result.setMessage("解析二维码成功");
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return result;
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} catch (Exception e) {
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logger.error("解析二维码失败");
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throw new BusinessException("解析二维码失败");
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}
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}
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/**
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* 获取图片zip
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*
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* @return
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*/
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public RestMessage batchGetImage(HttpServletResponse response, String[] names, String fileName) {
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List<File> files = new ArrayList<>();
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if (names.length == 0) {
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throw new BusinessException("请选择要导出的图片");
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}
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Arrays.stream(names).forEach(name -> {
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File file = getFile(name);
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if (file != null && file.length() > 0) {
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files.add(file);
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}
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});
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return zipFile(response, files, fileName);
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}
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/**
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* 根据文件名获取图片
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*
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* @param name
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* @return
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*/
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private File getFile(String name) {
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String path = getPath();
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File output = new File(path + File.separator + name + ".png");
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if (output.exists()) {
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return output;
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}
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return null;
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}
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/**
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* 获取pic路径
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*
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* @return
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*/
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public String getPath() {
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ClassPathResource pic = new ClassPathResource("file");
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String absolutePath;
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try {
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absolutePath = pic.getFile().getAbsolutePath();
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} catch (IOException e) {
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throw new BusinessException("获取图片路径错误");
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}
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return absolutePath;
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}
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/**
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* 导出文件
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*
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* @return
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*/
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private RestMessage zipFile(HttpServletResponse response, List<File> files, String fileName) {
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RestMessage restMessage = new RestMessage();
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String path = getPath();
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ZipUtil.zipFile(response, files, path, fileName);
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restMessage.setSuccess(true);
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restMessage.setMessage("导出zip文件成功");
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return restMessage;
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}
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}
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