接下来,我们应该通过用户的id,调用后端的接口,查询出来点赞的数量,关注的数量,粉丝数量,直接更新头像图片。源码:https://github.com/limingios/wxProgram.git 中wx-springboot 和 No.15
spring boot-service 增加通过user的id,获得Users的方法
UserService.java
package com.idig8.service; import com.idig8.pojo.Users; public interface UserService { /** * 判断用户名是否存在 * @param username * @return */ public boolean queryUsernameIsExist(String username); /** * 保存用户 * @param user * @return */ public void saveUser(Users user); /** * 查询用户对象 * @param username * @return */ public Users queryUserIsExist(Users user); /** * 更新对象 * @param username * @return */ public void updateUser(Users user); /** * userId查询用户对象 * @param username * @return */ public Users queryUserId(String userId); }
UserServiceImpl.java
package com.idig8.service; import org.n3r.idworker.Sid; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.autoconfigure.security.SecurityProperties.User; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional; import com.idig8.mapper.UsersMapper; import com.idig8.pojo.Users; import com.idig8.utils.MD5Utils; import tk.mybatis.mapper.entity.Example; import tk.mybatis.mapper.entity.Example.Criteria; @Service public class UserServiceImpl implements UserService { @Autowired private UsersMapper usersMapper; @Autowired private Sid sid; @Transactional(propagation =Propagation.SUPPORTS) @Override public boolean queryUsernameIsExist(String username) { Users user = new Users(); user.setUsername(username); Users result = usersMapper.selectOne(user); return result==null? false:true; } @Transactional(propagation =Propagation.REQUIRED) @Override public void saveUser(Users user) { String userId =sid.nextShort(); user.setId(userId); usersMapper.insert(user); } @Transactional(propagation =Propagation.SUPPORTS) @Override public Users queryUserIsExist(Users user) { Example queryExample = new Example(Users.class); Criteria criteria = queryExample.createCriteria(); criteria.andEqualTo("username",user.getUsername()); try { criteria.andEqualTo("password",MD5Utils.getMD5Str(user.getPassword())); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } Users userOne = usersMapper.selectOneByExample(queryExample); return userOne; } @Transactional(propagation =Propagation.REQUIRED) @Override public void updateUser(Users user) { Example userExample = new Example(Users.class); Criteria criteria = userExample.createCriteria(); criteria.andEqualTo("id", user.getId()); usersMapper.updateByExampleSelective(user, userExample); } @Transactional(propagation =Propagation.SUPPORTS) @Override public Users queryUserId(String userId){ Example queryExample = new Example(Users.class); Criteria criteria = queryExample.createCriteria(); criteria.andEqualTo("id",userId); Users userOne = usersMapper.selectOneByExample(queryExample); return userOne; } }
spring boot -api 中 在UserController中添加方法
增加controller 接口,传递user中的id参数
package com.idig8.controller; import org.apache.commons.lang3.StringUtils; import org.springframework.beans.BeanUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.multipart.MultipartFile; import com.idig8.pojo.Users; import com.idig8.pojo.vo.UsersVO; import com.idig8.service.UserService; import com.idig8.utils.JSONResult; import com.idig8.utils.file.FileUtil; import io.swagger.annotations.Api; import io.swagger.annotations.ApiImplicitParam; import io.swagger.annotations.ApiImplicitParams; import io.swagger.annotations.ApiOperation; @RestController @Api(value="用户接口",tags={"用户的controller"}) @RequestMapping(value = "/user") public class UserController extends BasicController{ @Autowired private UserService userService; @Value("${server.face.path}") private String fileSpace; @ApiOperation(value="用户上传头像",notes="用户上传头像的接口") @ApiImplicitParams({ @ApiImplicitParam(name="userId",value="用户id",required=true,dataType="String",paramType="query"), @ApiImplicitParam(name="file",value="文件上传",required=true,dataType="String",paramType="query"), }) @PostMapping("/uploadFace") public JSONResult uploadFace(String userId,@RequestParam("file") MultipartFile file) { if (StringUtils.isBlank(userId)) { return JSONResult.errorMsg("用户id不能为空..."); } // 文件保存的命名空间 String fileName = file.getOriginalFilename(); // 保存到数据库中的相对路径 String path = ""; try { path = FileUtil.uploadFile(file.getBytes(), fileSpace, fileName); } catch (Exception e) { e.getStackTrace(); return JSONResult.errorMsg(e.getMessage()); } Users user = new Users(); user.setId(userId); user.setFaceImage(path); userService.updateUser(user); return JSONResult.ok(path); } @ApiOperation(value="通过用户Id获取用户信息",notes="通过用户Id获取用户信息的接口") @ApiImplicitParam(name="userId",value="用户id",required=true,dataType="String",paramType="query") @PostMapping("/queryByUserId") public JSONResult queryByUserId(String userId) { if (StringUtils.isBlank(userId)) { return JSONResult.errorMsg("用户id不能为空..."); } Users user = userService.queryUserId(userId); UsersVO usersVO= new UsersVO(); BeanUtils.copyProperties(user, usersVO); return JSONResult.ok(usersVO); } }
运行后端项目,查看swagger2的效果
主要通过的是小程序生命周期中的onload方法,当进入页面的时候请求后台获取信息,用于页面的展示。
// pages/mine/mine.js const app = getApp() Page({ /** * 页面的初始数据 */ data: { faceImage: "../../resource/images/noneface.png", nickname: "昵称", fansCounts: 0, followCounts: 0, receiveLikeCounts: 0, }, /** * 用户注销 */ logout:function(e){ var user = app.userInfo; wx.showLoading({ title: '正在注销中。。。' }); wx.request({ url: app.serverUrl + "/logout?userId="+user.id, method: "POST", header: { 'content-type': 'application/json' // 默认值 }, success: function (res) { console.log(res.data); var status = res.data.status; wx.hideLoading(); if (status == 200) { wx.showToast({ title: "用户注销成功~!", icon: 'none', duration: 3000 }) app.userInfo = null; wx.redirectTo({ url: '../userRegister/userRegister', }) } else if (status == 500) { wx.showToast({ title: res.data.msg, icon: 'none', duration: 3000 }) } } }) }, /** * 头像上传 */ uploadFace:function(e){ var user = app.userInfo; var me = this; wx.chooseImage({ count: 1, // 默认9 sizeType: ['compressed'], // 可以指定是原图还是压缩图,默认二者都有 sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机,默认二者都有 success: function (res) { // 返回选定照片的本地文件路径列表,tempFilePath可以作为img标签的src属性显示图片 var tempFilePaths = res.tempFilePaths if (tempFilePaths.length>0){ console.log(tempFilePaths[0]); wx.uploadFile({ url: app.serverUrl + "/user/uploadFace?userId=" + user.id, //仅为示例,非真实的接口地址 filePath: tempFilePaths[0], name: 'file', success: function (res) { var data = JSON.parse(res.data); console.log(data); wx.hideLoading(); if (data.status == 200) { wx.showToast({ title: "用户上传成功~!", icon: 'none', duration: 3000 }) me.setData({ faceUrl: app.serverUrl+data.data }) } else if (data.status == 500) { wx.showToast({ title: data.msg, icon: 'none', duration: 3000 }) } } }) } } }) }, /** * 生命周期函数--监听页面加载 */ onLoad: function (options) { var me = this; wx.showLoading({ title: '正在获取用户信息。。。' }); wx.request({ url: app.serverUrl + "/user/queryByUserId?userId=" + app.userInfo.id, method: "POST", header: { 'content-type': 'application/json' // 默认值 }, success: function (res) { console.log(res.data); var status = res.data.status; var userInfo = res.data.data; wx.hideLoading(); var faceImage = me.data.faceUrl; if (userInfo.faceImage != null && userInfo.faceImage != '' && userInfo.faceImage!=undefined){ faceImage = app.serverUrl +userInfo.faceImage; } me.setData({ faceImage: faceImage, fansCounts: userInfo.fansCounts, followCounts: userInfo.followCounts, receiveLikeCounts: userInfo.receiveLikeCounts, nickname: userInfo.nickname }) } }) }, /** * 生命周期函数--监听页面初次渲染完成 */ onReady: function () { }, /** * 生命周期函数--监听页面显示 */ onShow: function () { }, /** * 生命周期函数--监听页面隐藏 */ onHide: function () { }, /** * 生命周期函数--监听页面卸载 */ onUnload: function () { }, /** * 页面相关事件处理函数--监听用户下拉动作 */ onPullDownRefresh: function () { }, /** * 页面上拉触底事件的处理函数 */ onReachBottom: function () { }, /** * 用户点击右上角分享 */ onShareAppMessage: function () { } })
PS:这个小程序获取用户信息和后端的一个联调。
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