「小程式JAVA實戰」小程式搜尋功能（54）

· 發表 2018-09-23 00:04:25

摘要：通過使用者搜尋熱銷詞，將熱銷詞新增到資料庫中，搜尋頁面通過熱銷詞的頻率展示出來那些詞屬於熱銷詞。並新增列表引數，可以通過搜尋關鍵字查詢列表功能。原始碼：https://github.com/limingios/wxProgram.git 中wx-springboot 和 No.15 後臺介...

通過使用者搜尋熱銷詞，將熱銷詞新增到資料庫中，搜尋頁面通過熱銷詞的頻率展示出來那些詞屬於熱銷詞。並新增列表引數，可以通過搜尋關鍵字查詢列表功能。原始碼：https://github.com/limingios/wxProgram.git 中wx-springboot 和 No.15

後臺介面的開發。

增加關鍵字查詢視訊列表功能

VideosUserMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.idig8.mapper.VideosUsersMapper" >
<resultMap id="BaseResultMap" type="com.idig8.pojo.vo.VideosVO" >
<!--
WARNING - @mbg.generated
-->
<id column="id" property="id" jdbcType="VARCHAR" />
<result column="user_id" property="userId" jdbcType="VARCHAR" />
<result column="audio_id" property="audioId" jdbcType="VARCHAR" />
<result column="video_desc" property="videoDesc" jdbcType="VARCHAR" />
<result column="video_path" property="videoPath" jdbcType="VARCHAR" />
<result column="video_seconds" property="videoSeconds" jdbcType="REAL" />
<result column="video_width" property="videoWidth" jdbcType="INTEGER" />
<result column="video_height" property="videoHeight" jdbcType="INTEGER" />
<result column="cover_path" property="coverPath" jdbcType="VARCHAR" />
<result column="like_counts" property="likeCounts" jdbcType="BIGINT" />
<result column="status" property="status" jdbcType="INTEGER" />
<result column="create_time" property="createTime" jdbcType="TIMESTAMP" />
<result column="username" property="username" jdbcType="VARCHAR" />
<result column="face_image" property="faceImage" jdbcType="VARCHAR" />
<result column="nickname" property="nickname" jdbcType="VARCHAR" />
</resultMap>

<select id="queryAllVideos" resultMap="BaseResultMap" parameterType="String">
select v.*,u.face_image,u.username,u.nickname from videos v
left join users u on v.user_id = u.id
where 
1 = 1
<if test="videoDesc !=nulland videoDesc != '' ">
and v.video_desc like '%${videoDesc}%'
</if>
and v.status = 1
order by v.create_time

</select>

</mapper>

熱銷詞統計功能

SearchRecordsMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.idig8.mapper.SearchRecordsMapper" >
<resultMap id="BaseResultMap" type="com.idig8.pojo.SearchRecords" >
<!--
WARNING - @mbg.generated
-->
<id column="id" property="id" jdbcType="VARCHAR" />
<result column="content" property="content" jdbcType="VARCHAR" />
</resultMap>

<select id="gethotList" resultType="String">
select content from search_records group by content order by count(content) desc
</select>
</mapper>

java對應xml的方法

VideosUsersMapper.java

package com.idig8.mapper;

import java.util.List;

import org.apache.ibatis.annotations.Param;

import com.idig8.pojo.Videos;
import com.idig8.pojo.vo.VideosVO;
import com.idig8.utils.MyMapper;

public interface VideosUsersMapper extends MyMapper<VideosVO> {

public List<VideosVO> queryAllVideos(@Param("videoDesc") String videoDesc);
}

SearchRecordsMapper.java

package com.idig8.mapper;

import java.util.List;

import com.idig8.pojo.SearchRecords;
import com.idig8.utils.MyMapper;

public interface SearchRecordsMapper extends MyMapper<SearchRecords> {

public List<String> gethotList();
}

service 新增2個方法，

>列表中新增儲存關鍵字，查詢視訊新增關鍵字的，

>獲取熱銷詞列表

VideoService.java

package com.idig8.service;

import java.util.List;

import com.idig8.pojo.Videos;
import com.idig8.utils.PagedResult;

public interface VideoService {


/**
* 儲存視訊資訊
* @param Id
* @return
*/
public String saveVideo(Videos video);

/**
* 分析查詢視訊列表
* @param video
* @param isSaveRecord
* @param page
* @param pageSize
* @return
*/
public PagedResult getAllVideos(Videos video,Integer isSaveRecord,Integer page,Integer pageSize);

/**
* 獲取熱搜詞列表
* @return
*/
public List<String> gethostList();
}

VideoServiceImpl.java

package com.idig8.service.Impl;

import java.util.List;

import org.n3r.idworker.Sid;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.github.pagehelper.autoconfigure.PageHelperAutoConfiguration;
import com.idig8.mapper.SearchRecordsMapper;
import com.idig8.mapper.VideosMapper;
import com.idig8.mapper.VideosUsersMapper;
import com.idig8.pojo.SearchRecords;
import com.idig8.pojo.Videos;
import com.idig8.pojo.vo.VideosVO;
import com.idig8.service.VideoService;
import com.idig8.utils.PagedResult;

@Service
public class VideoServiceImpl implementsVideoService {

@Autowired
private VideosMapper videosMapper;

@Autowired
private VideosUsersMapper videosUsersMapper;

@Autowired
private SearchRecordsMapper searchRecordsMapper;

@Autowired
private Sid sid;

@Transactional(propagation =Propagation.REQUIRED)
public StringsaveVideo(Videos video){
String id = sid.nextShort();
video.setId(id);

videosMapper.insertSelective(video);
return id;


}

@Override
@Transactional(propagation =Propagation.REQUIRED)
public PagedResult getAllVideos(Videos video,Integer isSaveRecord,Integer page, Integer pageSize) {

String desc = video.getVideoDesc();
if(isSaveRecord!=null && isSaveRecord ==1){
SearchRecords record = new SearchRecords();
String recordId = sid.nextShort();
record.setId(recordId);
record.setContent(desc);
searchRecordsMapper.insert(record);
}

PageHelper.startPage(page,pageSize);
List<VideosVO> list = videosUsersMapper.queryAllVideos(desc);
PageInfo<VideosVO> pageList =new PageInfo<>(list);

PagedResult result = new PagedResult();
result.setPage(page);
result.setTotal(pageList.getPages());
result.setRows(list);
result.setRecords(pageList.getTotal());

return result;
}

@Transactional(propagation =Propagation.SUPPORTS)
@Override
public List<String> gethostList() {

return searchRecordsMapper.gethotList();
}
}

controller 控制器開發

package com.idig8.controller;

import java.io.File;
import java.util.Date;
import java.util.UUID;

import org.apache.commons.lang3.StringUtils;
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.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import com.idig8.pojo.Bgm;
import com.idig8.pojo.Videos;
import com.idig8.service.BgmService;
import com.idig8.service.VideoService;
import com.idig8.utils.FetchVideoCover;
import com.idig8.utils.JSONResult;
import com.idig8.utils.MergeVideoMp3;
import com.idig8.utils.PagedResult;
import com.idig8.utils.enums.VideoStatusEnum;
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;
import io.swagger.annotations.ApiParam;


@RestController
@Api(value="視訊相關業務的介面", tags= {"視訊相關業務的controller"})
@RequestMapping("/video")
public class VideoController extends BasicController {

@Autowired
private BgmService bgmService;

@Autowired
private VideoService videosService;

@Value("${server.file.path}")
private String fileSpace;

@Value("${server.ffmpeg.path}")
private String ffmpegexe;


@ApiOperation(value="上傳視訊", notes="上傳視訊的介面")
@ApiImplicitParams({
@ApiImplicitParam(name="userId", value="使用者id", required=true, 
dataType="String", paramType="form"),
@ApiImplicitParam(name="bgmId", value="背景音樂id", required=false, 
dataType="String", paramType="form"),
@ApiImplicitParam(name="videoSeconds", value="背景音樂播放長度", required=true, 
dataType="String", paramType="form"),
@ApiImplicitParam(name="videoWidth", value="視訊寬度", required=true, 
dataType="String", paramType="form"),
@ApiImplicitParam(name="videoHeight", value="視訊高度", required=true, 
dataType="String", paramType="form"),
@ApiImplicitParam(name="desc", value="視訊描述", required=false, 
dataType="String", paramType="form")
})
@PostMapping(value="/upload", headers="content-type=multipart/form-data")
public JSONResult upload(String userId, 
String bgmId, double videoSeconds, 
int videoWidth, int videoHeight,
String desc,
@ApiParam(value="短視訊", required=true)
MultipartFile file) throws Exception {

if (StringUtils.isBlank(userId)) {
return JSONResult.errorMsg("使用者id不能為空...");
}
// 檔案儲存的名稱空間
String fileName = file.getOriginalFilename();
// 儲存到資料庫中的相對路徑
String path = "";
String videOutPath = "";
String ImagePath = "";
try {
path = FileUtil.uploadFile(file.getBytes(), fileSpace, fileName);
} catch (Exception e) {
e.getStackTrace();
return JSONResult.errorMsg(e.getMessage());
}


if(StringUtils.isNotBlank(bgmId)){
Bgm bgm = bgmService.queryBgmById(bgmId);
String mp3BgmPath = fileSpace + bgm.getPath();
MergeVideoMp3 mergeVideoMp3 = new MergeVideoMp3(ffmpegexe);
String videOutPathName = UUID.randomUUID().toString()+".mp4";
File targetFile = new File(fileSpace + userId);
if (!targetFile.exists()) {
targetFile.mkdirs();
}
videOutPath = "/"+userId+"/"+videOutPathName;
String videoInput = fileSpace +path;
mergeVideoMp3.convertor(videoInput, mp3BgmPath, videoSeconds, fileSpace +videOutPath);

}else{
videOutPath = path;

}

ImagePath ="/"+userId+"/"+UUID.randomUUID().toString()+".jpg";;
FetchVideoCover fetchVideoCover = new FetchVideoCover(ffmpegexe);
fetchVideoCover.getCover(fileSpace +videOutPath, fileSpace +ImagePath);


Videos videos = new Videos();
videos.setAudioId(bgmId);
videos.setCreateTime(new Date());
videos.setVideoDesc(desc);
videos.setId(UUID.randomUUID().toString());
videos.setUserId(userId);
videos.setVideoHeight(videoHeight);
videos.setVideoWidth(videoWidth);
videos.setVideoPath(videOutPath);
videos.setCoverPath(ImagePath);
videos.setStatus(VideoStatusEnum.SUCCESS.value);
videosService.saveVideo(videos);

return JSONResult.ok(path);

}

@PostMapping(value="/showAll")
@ApiOperation(value="視訊列表", notes="分頁的視訊列表")
public JSONResult upload(@RequestBody Videos video,Integer isSaveRecord,
Integer page) throws Exception {
if(page == null){
page = 1;
}
PagedResult result = videosService.getAllVideos(video,isSaveRecord,page, PAGE_SIZE);
return JSONResult.ok(result);

}

@PostMapping(value="/hot")
@ApiOperation(value="熱搜詞列表", notes="熱搜詞列表")
public JSONResult upload() throws Exception {

return JSONResult.ok(videosService.gethostList());

}
}

前端功能開發

調後端url，獲取熱銷關鍵字展示。

var WxSearch = require('../../wxSearchView/wxSearchView.js');
const app = getApp()
Page({

/**
* 頁面的初始資料
*/
data: {

},

onLoad: function () {


// 2 搜尋欄初始化
var that = this;
wx.request({
url: app.serverUrl +"/video/hot",
method: "POST",
header: {
'content-type': 'application/json' // 預設值
},
success: function (res) {
var searchHot = res.data.data;
WxSearch.init(
that,// 本頁面一個引用
searchHot, // 熱點搜尋推薦，[]表示不使用
searchHot,// 搜尋匹配，[]表示不使用
that.mySearchFunction, // 提供一個搜尋回撥函式
that.myGobackFunction //提供一個返回回撥函式
);
}
})



},

// 3 轉發函式，固定部分，直接拷貝即可
wxSearchInput: WxSearch.wxSearchInput,// 輸入變化時的操作
wxSearchKeyTap: WxSearch.wxSearchKeyTap,// 點選提示或者關鍵字、歷史記錄時的操作
wxSearchDeleteAll: WxSearch.wxSearchDeleteAll, // 刪除所有的歷史記錄
wxSearchConfirm: WxSearch.wxSearchConfirm,// 搜尋函式
wxSearchClear: WxSearch.wxSearchClear,// 清空函式

// 4 搜尋回撥函式
mySearchFunction: function (value) {
// do your job here
// 示例：跳轉
wx.redirectTo({
url: '../index/index?isSaveRecord=1&searchValue=' + value
})
},

// 5 返回回撥函式
myGobackFunction: function () {
// do your job here
// 示例：返回
wx.redirectTo({
url: '../index/index'
})
},

/**
* 生命週期函式--監聽頁面初次渲染完成
*/
onReady: function () {

},

/**
* 生命週期函式--監聽頁面顯示
*/
onShow: function () {

},

/**
* 生命週期函式--監聽頁面隱藏
*/
onHide: function () {

},

/**
* 生命週期函式--監聽頁面解除安裝
*/
onUnload: function () {

},

/**
* 頁面相關事件處理函式--監聽使用者下拉動作
*/
onPullDownRefresh: function () {

},

/**
* 頁面上拉觸底事件的處理函式
*/
onReachBottom: function () {

},

/**
* 使用者點選右上角分享
*/
onShareAppMessage: function () {

}
})

輸入搜尋後跳轉到index頁面，展示搜尋結果

>增加isSaveRecord 和 searchValue 關鍵字根據搜尋傳遞過來，然後修改請求列表引數。

const app = getApp()

Page({
data: {
// 用於分頁的屬性
totalPage: 1,
page: 1,
videoList: [],
screenWidth: 350,
serverUrl: "",
searchValue:""
},

onLoad: function (params) {
var me = this;
var screenWidth = wx.getSystemInfoSync().screenWidth;
me.setData({
screenWidth: screenWidth,
});

var searchValue = params.searchValue;
var isSaveRecord = params.isSaveRecord;
if (isSaveRecord == null || isSaveRecord == "" || isSaveRecord == undefined){
isSaveRecord = 0;
}

me.setData({
searchValue: searchValue,
});



// 獲取當前的分頁數
var page = me.data.page;
me.getAllVideosList(page, isSaveRecord);
},

getAllVideosList: function (page, isSaveRecord){
var me = this;
var serverUrl = app.serverUrl;
wx.showLoading({
title: '請等待，載入中...',
});


wx.request({
url: serverUrl + '/video/showAll?page=' + page + "&isSaveRecord =" + isSaveRecord,
method: "POST",
data:{
videoDesc: me.data.searchValue
},
success: function (res) {
wx.hideLoading();
wx.hideNavigationBarLoading();
wx.stopPullDownRefresh();

console.log(res.data);

// 判斷當前頁page是否是第一頁，如果是第一頁，那麼設定videoList為空
if (page === 1) {
me.setData({
videoList: []
});
}

var videoList = res.data.data.rows;
var newVideoList = me.data.videoList;

me.setData({
videoList: newVideoList.concat(videoList),
page: page,
totalPage: res.data.data.total,
serverUrl: serverUrl
});

}
})
},

onPullDownRefresh: function (params) {
var me = this;
wx.showNavigationBarLoading();
me.getAllVideosList(1,0);

},

onReachBottom: function (params){
var me = this;
var currentPage = me.data.page;
var totalPage = me.data.totalPage;

//判斷當前頁數和總頁數是否相等，如果相同已經無需請求
if (currentPage == totalPage){
wx.showToast({
title: '已經沒有視訊啦~',
icon:"none"
})
return;
}
var page = currentPage+1;
me.getAllVideosList(page,0);

}


})

PS：搜尋功能，後臺提供url，直接賦值到外掛就可以了，通過輸入關鍵字點選搜尋，將關鍵字儲存標識傳遞，關鍵字傳遞給index頁面，index獲取後在根據關鍵字查詢結果。

ofollow,noindex" target="_blank" href="http://zhanzhang.baidu.com/sitesubmit/index?sitename=https://idig8.com/2018/09/23/xiaochengxujavashizhanxiaochengxusousuogongneng54/">百度未收錄

>>原創文章，歡迎轉載。轉載請註明：轉載自IT人故事會，謝謝！

>>原文連結地址：

「小程式JAVA實戰」小程式搜尋功能（54）

後臺介面的開發。

前端功能開發

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