基于SpringBoot+mysql社团管理

学生社团管理系统的使用用户共分为四种：普通浏览者、社团成员、社团负责人和社团管理员。除了普通浏览者外，其它用户都需要通用用户名和密码的进行身份验证，验证成功后通过设计的不同的使用权限，来实现使用或管理系统的各份功能。系统整体模块图如图所示：

代码已经上传github，下载地址：https://github.com/21503882/association

基于SpringBoot+mysql社团管理
图4.1 社团管理系统总体结构图
（一）普通浏览者子系统是社团管理系统对外开放的部分，由于本系统采用BS的模式进行设计，只要浏览者输入网址，就可以登录本系统进行常规的查看。普通浏览者子系统包括新闻资讯查看，社团介绍信息，活动日程信息，访客评论，访客留言信息等。

图4.2浏览者子系统功能模块图
（二）社团成员子系统主要完成社团成员对本站的操作。社团成员的主要操作包括社团成员注册、用户登录、个人资料修改、申请组建社团、申请加入社团、密码修改等。社团成员子系统功能模块图如图4.3所示：

图4.3社团成员子系统功能模块图

（三）社团负责人子系统主要完成社团负责人对所管理的社团进行管理与维护的操作，主要包括管理社团简介、新闻资讯管理、近期日程管理、社团成员管理、活动与经费管理、场地器材管理、网站留言管理等。社团负责人子系统功能模块图如图4.4所示：

图4.4社团负责人子系统功能模块图
（四）社团管理员子系统完成系统管理员本系统的管理与维护操作，是本系统最高权限用户，主要包括滚动公告管理、社团负责人管理、社团管理、活动经费审批、器材场地审批、社团成员管理、社团评优管理。社团管理子系统功能模块图如图4.5所示：

图4.5 社团管理员子系统功能模块图

图5.3 网站首页

基于SpringBoot+mysql社团管理

新闻咨讯

基于SpringBoot+mysql社团管理
社团简介

加入社团

基于SpringBoot+mysql社团管理
活动日程

基于SpringBoot+mysql社团管理
访客留言

会员中心

会员注册

基于SpringBoot+mysql社团管理
注册

基于SpringBoot+mysql社团管理
会员登录后界面

基于SpringBoot+mysql社团管理

社团负责人登录后界面：

基于SpringBoot+mysql社团管理

package me.zbl.activity.controller;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import me.zbl.common.config.Constant;
import me.zbl.common.controller.BaseController;
import me.zbl.common.utils.PageWrapper;
import me.zbl.common.utils.R;
import org.activiti.bpmn.converter.BpmnXMLConverter;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.editor.constants.ModelDataJsonConstants;
import org.activiti.editor.language.json.converter.BpmnJsonConverter;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.repository.Model;
import org.activiti.rest.editor.model.ModelEditorJsonRestResource;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.batik.transcoder.image.PNGTranscoder;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.List;

import static org.activiti.editor.constants.ModelDataJsonConstants.*;

/**
* @author
*/
@RequestMapping("/activiti")
@RestController
public class ModelController extends BaseController {

protected static final Logger LOGGER = LoggerFactory.getLogger(ModelEditorJsonRestResource.class);

@Autowired
private RepositoryService repositoryService;

@Autowired
private ObjectMapper objectMapper;

  @GetMapping("/model")
  ModelAndView model() {
    return new ModelAndView("act/model/model");
  }

  @GetMapping("/model/list")
  PageWrapper list(int offset, int limit) {
    List<Model> list = repositoryService.createModelQuery().listPage(offset
            , limit);
    int total = (int) repositoryService.createModelQuery().count();
    PageWrapper pageUtil = new PageWrapper(list, total);
    return pageUtil;
  }

@RequestMapping("/model/add")
public void newModel(HttpServletResponse response) throws UnsupportedEncodingException {

    //初始化一个空模型
    Model model = repositoryService.newModel();
    //设置一些默认信息
    String name = "new-process";
    String description = "";
    int revision = 1;
    String key = "process";

    ObjectNode modelNode = objectMapper.createObjectNode();
    modelNode.put(ModelDataJsonConstants.MODEL_NAME, name);
    modelNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);
    modelNode.put(ModelDataJsonConstants.MODEL_REVISION, revision);

    model.setName(name);
    model.setKey(key);
    model.setMetaInfo(modelNode.toString());

repositoryService.saveModel(model);
String id = model.getId();

    //完善ModelEditorSource
    ObjectNode editorNode = objectMapper.createObjectNode();
    editorNode.put("id", "canvas");
    editorNode.put("resourceId", "canvas");
    ObjectNode stencilSetNode = objectMapper.createObjectNode();
    stencilSetNode.put("namespace",
            "http://b3mn.org/stencilset/bpmn2.0#");
    editorNode.put("stencilset", stencilSetNode);
    repositoryService.addModelEditorSource(id, editorNode.toString().getBytes("utf-8"));
    try {
      response.sendRedirect("/modeler.html?modelId=" + id);
    } catch (IOException e) {
      e.printStackTrace();
    }
  }

  @GetMapping(value = "/model/{modelId}/json")
  public ObjectNode getEditorJson(@PathVariable String modelId) {
    ObjectNode modelNode = null;
    Model model = repositoryService.getModel(modelId);
    if (model != null) {
      try {
        if (StringUtils.isNotEmpty(model.getMetaInfo())) {
          modelNode = (ObjectNode) objectMapper.readTree(model.getMetaInfo());
        } else {
          modelNode = objectMapper.createObjectNode();
          modelNode.put(MODEL_NAME, model.getName());
        }
        modelNode.put(MODEL_ID, model.getId());
        ObjectNode editorJsonNode = (ObjectNode) objectMapper.readTree(
                new String(repositoryService.getModelEditorSource(model.getId()), "utf-8"));
        modelNode.put("model", editorJsonNode);

      } catch (Exception e) {
        LOGGER.error("Error creating model JSON", e);
        throw new ActivitiException("Error creating model JSON", e);
      }
    }
    return modelNode;
  }

  @RequestMapping(value = "/editor/stencilset", method = RequestMethod.GET, produces = "application/json;charset=utf-8")
  public String getStencilset() {
    InputStream stencilsetStream = this.getClass().getClassLoader().getResourceAsStream("stencilset.json");
    try {
      return IOUtils.toString(stencilsetStream, "utf-8");
    } catch (Exception e) {
      throw new ActivitiException("Error while loading stencil set", e);
    }
  }

  @GetMapping("/model/edit/{id}")
  public void edit(HttpServletResponse response, @PathVariable("id") String id) {
    try {
      response.sendRedirect("/modeler.html?modelId=" + id);
    } catch (IOException e) {
      e.printStackTrace();
    }
  }

  @DeleteMapping("/model/{id}")
  public R remove(@PathVariable("id") String id) {
    if (Constant.DEMO_ACCOUNT.equals(getUsername())) {
      return R.error(1, "演示系统不允许修改,完整体验请部署程序");
    }
    repositoryService.deleteModel(id);
    return R.ok();
  }

  @PostMapping("/model/deploy/{id}")
  public R deploy(@PathVariable("id") String id) throws Exception {
    if (Constant.DEMO_ACCOUNT.equals(getUsername())) {
      return R.error(1, "演示系统不允许修改,完整体验请部署程序");
    }
    //获取模型
    Model modelData = repositoryService.getModel(id);
    byte[] bytes = repositoryService.getModelEditorSource(modelData.getId());

    if (bytes == null) {
      return R.error("模型数据为空，请先设计流程并成功保存，再进行发布。");
    }

JsonNode modelNode = new ObjectMapper().readTree(bytes);

    BpmnModel model = new BpmnJsonConverter().convertToBpmnModel(modelNode);
    if (model.getProcesses().size() == 0) {
      return R.error("数据模型不符要求，请至少设计一条主线流程。");
    }
    byte[] bpmnBytes = new BpmnXMLConverter().convertToXML(model);

    //发布流程
    String processName = modelData.getName() + ".bpmn20.xml";
    Deployment deployment = repositoryService.createDeployment()
            .name(modelData.getName())
            .addString(processName, new String(bpmnBytes, "UTF-8"))
            .deploy();
    modelData.setDeploymentId(deployment.getId());
    repositoryService.saveModel(modelData);

return R.ok();
}

  @PostMapping("/model/batchRemove")
  public R batchRemove(@RequestParam("ids[]") String[] ids) {
    if (Constant.DEMO_ACCOUNT.equals(getUsername())) {
      return R.error(1, "演示系统不允许修改,完整体验请部署程序");
    }
    for (String id : ids) {
      repositoryService.deleteModel(id);
    }
    return R.ok();
  }

  @RequestMapping(value = "/model/{modelId}/save", method = RequestMethod.PUT)
  @ResponseStatus(value = HttpStatus.OK)
  public void saveModel(@PathVariable String modelId
          , String name, String description
          , String json_xml, String svg_xml) {
    try {

Model model = repositoryService.getModel(modelId);

ObjectNode modelJson = (ObjectNode) objectMapper.readTree(model.getMetaInfo());

      modelJson.put(MODEL_NAME, name);
      modelJson.put(MODEL_DESCRIPTION, description);
      model.setMetaInfo(modelJson.toString());
      model.setName(name);

repositoryService.saveModel(model);

repositoryService.addModelEditorSource(model.getId(), json_xml.getBytes("utf-8"));

InputStream svgStream = new ByteArrayInputStream(svg_xml.getBytes("utf-8"));
TranscoderInput input = new TranscoderInput(svgStream);

      PNGTranscoder transcoder = new PNGTranscoder();
      // Setup output
      ByteArrayOutputStream outStream = new ByteArrayOutputStream();
      TranscoderOutput output = new TranscoderOutput(outStream);

      // Do the transformation
      transcoder.transcode(input, output);
      final byte[] result = outStream.toByteArray();
      repositoryService.addModelEditorSourceExtra(model.getId(), result);
      outStream.close();

    } catch (Exception e) {
      LOGGER.error("Error saving model", e);
      throw new ActivitiException("Error saving model", e);
    }
  }

  @GetMapping("/model/export/{id}")
  public void exportToXml(@PathVariable("id") String id, HttpServletResponse response) {
    try {
      org.activiti.engine.repository.Model modelData = repositoryService.getModel(id);
      BpmnJsonConverter jsonConverter = new BpmnJsonConverter();
      JsonNode editorNode = new ObjectMapper().readTree(repositoryService.getModelEditorSource(modelData.getId()));
      BpmnModel bpmnModel = jsonConverter.convertToBpmnModel(editorNode);
      BpmnXMLConverter xmlConverter = new BpmnXMLConverter();
      byte[] bpmnBytes = xmlConverter.convertToXML(bpmnModel);

      ByteArrayInputStream in = new ByteArrayInputStream(bpmnBytes);
      IOUtils.copy(in, response.getOutputStream());
      String filename = bpmnModel.getMainProcess().getId() + ".bpmn20.xml";
      response.setHeader("Content-Disposition", "attachment; filename=" + filename);
      response.flushBuffer();
    } catch (Exception e) {
      throw new ActivitiException("导出model的xml文件失败，模型ID=" + id, e);
    }
  }
}

代码已经上传github，下载地址：https://github.com/21503882/association

基于SpringBoot+mysql社团管理

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