添加“使用GDAL获取EPSG编码”

13693261870

2023-11-29 a3d8b2a5a449f2f633973786573b5306f29a517e

 src/main/java/com/lf/server/helper/WebHelper.java

@@ -16,9 +16,7 @@
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.*;
import java.net.URLEncoder;
import java.sql.Timestamp;
import java.util.*;
@@ -254,21 +252,33 @@
    }

    /**
     * 输出json数据到前端
     * 输出str至前端
     */
    public static boolean write2Page(HttpServletResponse response, String jsonPack) throws IOException {
        response.setContentType("application/json;charset=UTF-8");
        response.setHeader("Cache-Control", "no-cache");
        response.setHeader("Pragma", "No-cache");
        response.setDateHeader("Expires", 0);
    public static boolean writeStr2Page(HttpServletResponse res, String str) {
        try {
            res.setContentType("application/json;charset=UTF-8");
            res.setHeader("Cache-Control", "no-cache");
            res.setHeader("Pragma", "No-cache");
            res.setDateHeader("Expires", 0);

        PrintWriter out = response.getWriter();
        out.print(jsonPack);
            PrintWriter out = res.getWriter();
            out.print(str);

        out.flush();
        out.close();
            out.flush();
            out.close();
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
        }

        return false;
    }

    /**
     * 输出json至前端
     */
    public static void writeJson2Page(HttpServletResponse res, String str) {
        String json = JSON.toJSONString(new ResponseMsg<>(HttpStatus.ERROR, str));
        writeStr2Page(res, json);
    }

    /**
@@ -282,11 +292,7 @@
     * 写响应信息
     */
    public static void writeInfo(HttpStatus status, String info, HttpServletResponse res) {
        try {
            WebHelper.write2Page(res, WebHelper.getErrJson(status, info));
        } catch (Exception e) {
            //
        }
        WebHelper.writeStr2Page(res, WebHelper.getErrJson(status, info));
    }

    /**
@@ -300,7 +306,7 @@
     * 下载文件
     */
    public static void download(String file, String fileName, HttpServletResponse res) throws Exception {
        download(file, fileName, res);
        download(file, fileName, false, res);
    }

    /**
@@ -360,6 +366,30 @@
    }

    /**
     * 执行命令
     *
     * @param cmd 命令
     */
    public static String exec2(String cmd) {
        try {
            StringBuilder sb = new StringBuilder();
            Process process = Runtime.getRuntime().exec(cmd);
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));

            String line;
            while ((line = reader.readLine()) != null) {
                sb.append(line).append("\n");
            }
            reader.close();

            return sb.toString();
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return null;
        }
    }

    /**
     * 获取请求的参数值
     *
     * @param req 请求