廣西大學AR運行

1.下載源代碼https://github.com/shiwen1997/gxu_ar ，在AS中打開:

打開運行可能會報錯。

一般是gradle的錯誤，確保翻牆（有些google的依賴下載不來），並且把app的gradle依賴版本改成最新的

implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.google.ar:core:1.4.0'
implementation 'com.android.support:design:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.android.support:support-vector-drawable:27.1.1'
implementation 'com.android.support:support-v4:27.1.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation files('src/main/java/build/java/Vuforia/Vuforia.jar')

2.服務器下載模型文件接口：

①新建IDEA項目file1223，新建DownloadController.java、application.yml兩個文件

package com.example.file1223;


import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class DownloadController
{

    @RequestMapping({"/downfile/{id}"})


    public String downloadFile(HttpServletRequest request, HttpServletResponse response, @PathVariable String id) throws Exception {
        String fileName = id;

        if (fileName != null) {

            String realPath = "/var/files/modelsfile/";
//            String realPath = "H:/modelsfile";

            File file = new File(realPath, fileName);
            if (file.exists()) {
                response.setContentType("application/force-download");


                response.setHeader("Content-Length", file.length() + "");

                response.setHeader("Content-Disposition", "attachment;fileName=" + new String(fileName.getBytes("GB2312"), "ISO-8859-1"));
                byte[] buffer = new byte[1024];
                FileInputStream fis = null;
                BufferedInputStream bis = null;
                try {
                    fis = new FileInputStream(file);
                    bis = new BufferedInputStream(fis);
                    ServletOutputStream servletOutputStream = response.getOutputStream();
                    int i = bis.read(buffer);
                    while (i != -1) {
                        servletOutputStream.write(buffer, 0, i);
                        i = bis.read(buffer);
                    }
                    System.out.println("");
                } catch (Exception e) {
                    e.printStackTrace();
                } finally {
                    if (bis != null) {
                        try {
                            bis.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    if (fis != null) {
                        try {
                            fis.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
        }
        return null;
    }
}

yml文件設置端口