package com.fzzy.api.service;
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import com.fzzy.api.entity.Api1109;
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import com.fzzy.api.view.repository.Api1109Rep;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import javax.servlet.ServletOutputStream;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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/**
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* @author vince.xu
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* @Title: ImgService
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* @ProjectName igds-api
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* @Description: TODO
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* @date 2022-9-611:25
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*/
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@Slf4j
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@Controller
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@RequestMapping
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public class ImgService {
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@Autowired
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private Api1109Rep api1109Rep;
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/**
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* IO流读取图片 by:long
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* @return
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*/
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@RequestMapping(value = "/img/{imgId}", method = RequestMethod.GET)
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public String IoReadImage(@PathVariable String imgId, HttpServletRequest request, HttpServletResponse response) throws IOException {
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ServletOutputStream out = null;
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FileInputStream ips = null;
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try {
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//获取图片存放路径
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Api1109 api1109 = api1109Rep.findById(imgId).get();
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ips = new FileInputStream(new File(api1109.getWjdz()));
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response.setContentType("multipart/form-data");
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out = response.getOutputStream();
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//读取文件流
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int len = 0;
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byte[] buffer = new byte[1024 * 10];
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while ((len = ips.read(buffer)) != -1){
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out.write(buffer,0,len);
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}
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out.flush();
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}
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catch (Exception e){
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log.error(e.getMessage(),e);
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}
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finally {
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if(out != null )
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out.close();
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if(ips != null )
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ips.close();
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}
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return null;
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}
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}
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