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There is a newer version: 3.3.18-20230117

package com.haoxuer.discover.web.controller.admin;

import com.google.gson.Gson;
import com.haoxuer.discover.web.utils.FileUtils;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 * 模板管理
 *
 * @author 张浩伟
 * @version 1.01 2017年08月30日
 */
@Controller
@RequestMapping(value = "/admin")
public class TmplAction {

  @RequiresPermissions("tmpl")
  @RequestMapping("/tmpl/view_list")
  public String list(HttpServletRequest request, ModelMap model) {
    String path = request.getSession().getServletContext().getRealPath("WEB-INF/ftl");
    if (path != null) {
      List tree = FileUtils.getTree(path, "");

      model.addAttribute("tree", new Gson().toJson(tree));
    }
    return "/admin/tmpl/list";
  }

  @RequiresPermissions("tmpl")
  @RequestMapping(value = "/tmpl/view_file", produces = "text/html;charset=UTF-8")
  @ResponseBody
  public String viewFile(String filename, HttpServletRequest request, ModelMap model) {
    String path = request.getSession().getServletContext().getRealPath("WEB-INF/ftl");
    if (path != null) {
      path = path + filename;
      return FileUtils.readFile(path);
    }
    return "";
  }

  @RequiresPermissions("tmpl")
  @RequestMapping(value = "/tmpl/view_save")
  @ResponseBody
  public String viewSave(String filename, String content, HttpServletRequest request, ModelMap model) {
    String path = request.getSession().getServletContext().getRealPath("WEB-INF/ftl");
    if (path != null) {
      path = path + filename;
      boolean saveFile = FileUtils.saveFile(path, content);
      if (saveFile) {
        return "0";
      }
    }
    return "-1";
  }

}