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移动应用开发大作业报告

来源：花匠小妙招时间：2024-11-14 13:01

1 基本信息

1.1 系统名称

中华字典

1.2 开发运行环境

开发环境：Windows 10 专业版，JDK 1.8，AndroidStudio

运行环境：Java SE Runtime Environment (JRE) 8

1.3 使用的核心技术

JFrame：作为实现界面的窗体类，用于创建图形用户界面。

Random：用来产生随机数，为系统提供随机性支持。

Swing：用于构建丰富的图形用户界面组件。

JDBC：Java Database Connectivity，用于Java程序与数据库之间的连接。

SQL：结构化查询语言，用于管理和查询数据库。

2 系统功能设计

2.1 系统总体功能

中华字典是一款基于Java开发的字典查询系统。该系统旨在为用户提供便捷、准确的汉字、词语查询服务，支持拼音查询、部首查询等多种查询方式。同时，系统还提供了详细的词语解释、例句、同义词、反义词等扩展信息，帮助用户更深入地理解词语的含义和用法。

2.2 系统模块详细设计

2.2.1 拼音查询功能模块

用户通过输入拼音来查询对应的汉字或词语。系统根据输入的拼音在数据库中检索，并返回相关结果。结果页面将展示匹配的汉字或词语列表，并提供详细的解释、例句、同义词、反义词等信息。

2.2.2 部首查询模块功能模块

用户通过选择部首来查询含有该部首的汉字。系统根据选择的部首在数据库中检索，并返回相关结果。用户可进一步筛选查询结果，以便快速定位到所需汉字。

2.2.3 成语查询功能模块

用户通过输入成语或成语的关键词来查询相关的成语信息。系统根据输入的关键词在数据库中检索，并返回相关成语列表。用户可查看成语的解释、出处、用法示例等信息。

2.2.4 成语接龙小游戏功能模块

用户可参与成语接龙小游戏，通过输入成语的最后一个字来寻找下一个成语的开头字，以完成接龙。

3 系统实现

3.1 拼音查询功能实现

3.1.1 功能描述

用户输入拼音后，系统通过调用后端接口进行数据库查询，并将查询结果返回给前端页面进行展示。前端页面提供输入框供用户输入拼音，同时展示查询结果列表和相关解释信息。

3.1.2 核心代码

package com.example.dict;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import android.text.TextUtils;

import android.view.View;

import android.widget.ExpandableListView;

import com.example.dict.adapter.SearchLeftAdapter;

import com.example.dict.bean.PinBuBean;

import com.example.dict.bean.PinBuWordBean;

import com.example.dict.db.DBManager;

import com.example.dict.utils.AssetsUtils;

import com.example.dict.utils.CommonUtils;

import com.example.dict.utils.URLUtils;

import com.google.gson.Gson;

import com.handmark.pulltorefresh.library.PullToRefreshGridView;

import java.util.ArrayList;

import java.util.List;

public class SearchPinyinActivity extends BaseSearchActivity {

String url;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

initData(CommonUtils.FILE_PINYIN,CommonUtils.TYPE_PINYIN);

setExLvListener(CommonUtils.TYPE_PINYIN);

exLv.expandGroup(0);

word = "a";

url = URLUtils.getPinyinurl(word,page,pagesize);

loadData(url);

setGVListener(CommonUtils.TYPE_PINYIN);

}

@Override

public void onError(Throwable ex, boolean isOnCallback) {

List<PinBuWordBean.ResultBean.ListBean> list = DBManager.queryPyWordFromPywordtb(word, page, pagesize);

refreshDataByGV(list);

}

3.1.3 运行截图

3.2 部首查询模块功能实现

3.2.1 功能描述

3.2.2 核心代码

package com.example.dict;

import android.os.Bundle;

import com.example.dict.bean.PinBuWordBean;

import com.example.dict.db.DBManager;

import com.example.dict.utils.CommonUtils;

import com.example.dict.utils.URLUtils;

import java.util.List;

public class SearchBuShouActivity extends BaseSearchActivity {

String url;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

titleTv.setText(R.string.main_tv_bushou);

initData(CommonUtils.FILE_BUSHOU,CommonUtils.TYPE_BUSHOU);

setExLvListener(CommonUtils.TYPE_BUSHOU);

exLv.expandGroup(0);

word = "丨";

url = URLUtils.getBushouurl(word,page,pagesize);

loadData(url);

setGVListener(CommonUtils.TYPE_BUSHOU);

}

@Override

public void onError(Throwable ex, boolean isOnCallback) {

List<PinBuWordBean.ResultBean.ListBean> list = DBManager.queryBsWordFromPywordtb(word, page, pagesize);

refreshDataByGV(list);

}

3.2.3 运行截图

3.3 成语查询模块功能实现

3.3.1 功能描述

3.3.2 核心代码

package com.example.dict;

import android.content.Intent;

import android.os.Bundle;

import android.text.TextUtils;

import android.view.View;

import android.widget.ArrayAdapter;

import android.widget.ImageView;

import android.widget.TextView;

import android.widget.Toast;

import com.example.dict.bean.ChengyuBean;

import com.example.dict.db.DBManager;

import com.example.dict.utils.MyGridView;

import com.example.dict.utils.URLUtils;

import com.google.gson.Gson;

import java.util.ArrayList;

import java.util.List;

public class ChengyuInfoActivity extends BaseActivity {

TextView ziTv1,ziTv2,ziTv3,ziTv4,pyTv,jsTv,fromTv,exampleTv,yufaTv,yinzhengTv,yinghangTv;

MyGridView tyGv,fyGv;

ImageView collectIv;

private String chengyu;

List<String> tongyiList,fanyinList;

ArrayAdapter<String> tyAdapter,fyAdapter;

boolean isCollect = false;

boolean isExist = false;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_chengyu_info);

initView();

initAdapter();

Intent intent = getIntent();

chengyu = intent.getStringExtra("chengyu");

String url = URLUtils.getChengyuurl(chengyu);

loadData(url);

isExist = DBManager.isExistCyuInCollcyutb(chengyu);

isCollect = isExist;

setCollectIvStyle();

}

private void setCollectIvStyle() {

if (isCollect) {

collectIv.setImageResource(R.mipmap.ic_collection_fs);

}else{

collectIv.setImageResource(R.mipmap.ic_collection);

}

private void initAdapter() {

tongyiList = new ArrayList<>();

fanyinList = new ArrayList<>();

tyAdapter = new ArrayAdapter<>(this, R.layout.item_word_jslv, R.id.item_wordlv_tv, tongyiList);

fyAdapter = new ArrayAdapter<>(this, R.layout.item_word_jslv, R.id.item_wordlv_tv, fanyinList);

tyGv.setAdapter(tyAdapter);

fyGv.setAdapter(fyAdapter);

}

@Override

public void onSuccess(String result) {

ChengyuBean bean = new Gson().fromJson(result, ChengyuBean.class);

ChengyuBean.ResultBean cyBean = bean.getResult();

if (cyBean!=null) {

cyBean.setChengyu(chengyu);

DBManager.insertCyToCyutb(cyBean);

showDataToView(cyBean);

}else{

Toast.makeText(this,"此成语无法查到，请重新查询！",Toast.LENGTH_SHORT).show();

}

@Override

public void onError(Throwable ex, boolean isOnCallback) {

ChengyuBean.ResultBean bean = DBManager.queryCyFromCyutb(chengyu);

if (bean!=null) {

showDataToView(bean);

}

private void showDataToView(ChengyuBean.ResultBean cyBean) {

String chengyu = cyBean.getChengyu();

ziTv1.setText(String.valueOf(chengyu.charAt(0)));

ziTv2.setText(String.valueOf(chengyu.charAt(1)));

ziTv3.setText(String.valueOf(chengyu.charAt(2)));

ziTv4.setText(String.valueOf(chengyu.charAt(3)));

pyTv.setText("拼音 : "+cyBean.getPinyin());

jsTv.setText(cyBean.getChengyujs());

fromTv.setText(cyBean.getFrom_());

exampleTv.setText(cyBean.getExample());

yufaTv.setText(cyBean.getYufa());

yinzhengTv.setText(cyBean.getYinzhengjs());

String ciyujs = cyBean.getCiyujs();

if (!TextUtils.isEmpty(ciyujs)) {

ciyujs = ciyujs.replace("]", "n").replace("[", "").replace(":", "");

yinghangTv.setText(ciyujs);

}

List<String> tList = cyBean.getTongyi();

if (tList!=null&&tList.size()!=0) {

tongyiList.addAll(tList);

tyAdapter.notifyDataSetChanged();

}

List<String> fList = cyBean.getFanyi();

if (fList!=null&&fList.size()!=0) {

fanyinList.addAll(fList);

fyAdapter.notifyDataSetChanged();

}

private void initView() {

ziTv1 = findViewById(R.id.cyinfo_tv_zi1);

ziTv2 = findViewById(R.id.cyinfo_tv_zi2);

ziTv3 = findViewById(R.id.cyinfo_tv_zi3);

ziTv4 = findViewById(R.id.cyinfo_tv_zi4);

pyTv = findViewById(R.id.cyinfo_tv_py);

jsTv = findViewById(R.id.cyinfo_tv_js);

fromTv = findViewById(R.id.cyinfo_tv_from);

exampleTv = findViewById(R.id.cyinfo_tv_example);

yufaTv = findViewById(R.id.cyinfo_tv_yufa);

yinzhengTv = findViewById(R.id.cyinfo_tv_yinzheng);

yinghangTv = findViewById(R.id.cyinfo_tv_yinghan);

tyGv = findViewById(R.id.cyinfo_gv_tongyi);

fyGv = findViewById(R.id.cyinfo_gv_fanyi);

collectIv = findViewById(R.id.cyinfo_iv_collection);

}

public void onClick(View view) {

switch (view.getId()) {

case R.id.cyinfo_iv_back:

finish();

break;

case R.id.cyinfo_iv_collection:

isCollect = !isCollect;

setCollectIvStyle();

break;

}

protected void onDestroy() {

super.onDestroy();

if (isExist&&!isCollect) {

DBManager.deleteCyuToCollcyutb(chengyu);

}

if (!isExist&&isCollect) {

DBManager.insertCyuToCollcyutb(chengyu);

}

3.3.3 运行截图

3.4 成语接龙小游戏功能实现

3.4.1 功能描述

用户可参与成语接龙小游戏，通过输入成语的最后一个字来寻找下一个成语的开头字，以完成接龙。

3.4.2 核心代码

package com.example.dict;

import androidx.annotation.Nullable;

import androidx.appcompat.app.AlertDialog;

import androidx.appcompat.app.AppCompatActivity;

import android.content.DialogInterface;

import android.content.Intent;

import android.os.Bundle;

import android.os.CountDownTimer;

import android.util.Log;

import android.view.Gravity;

import android.view.LayoutInflater;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ImageView;

import android.widget.LinearLayout;

import android.widget.TextView;

import android.widget.Toast;

import com.example.dict.BaseActivity;

import com.google.gson.Gson;

import com.example.dict.bean.ChengYuJieLongBean;

import com.example.dict.bean.ChengyuBean;

import com.example.dict.bean.WordBean;

import com.example.dict.db.DBManager;

import com.example.dict.filter.LimitInputTextWatcher;

import com.example.dict.utils.URLUtils;

public class ChengYuJieLongActivity extends BaseActivity {

EditText chengyu_et;

Button sure;

TextView word1,word2,word3,word4,word5,word6,word7,word8,timeout,level;

ImageView back;

LinearLayout chengjiebg;

char myChar[],newChar[];

String str,chengyu="";

int i=1;

Intent intent;

CountDownTimer timer;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_cheng_yu_jie_long);

inital();

chengyu_et.addTextChangedListener(new LimitInputTextWatcher(chengyu_et));

intent = getIntent();

i = intent.getIntExtra("level",1);

chengyu=intent.getStringExtra("accchengyu");

if(chengyu!=""){

String url = URLUtils.getChengyujielongurl(chengyu);

loadData(url);

}

chengjiebg.setBackgroundResource(getResources().getIdentifier("gufeng"+i, "drawable", getApplicationInfo().packageName));

level.setText("关卡:"+i);

String url = URLUtils.getChengyujielongurl(str);

loadData(url);

timer = new CountDownTimer(300000, 1000) {

public void onTick(long millisUntilFinished) {

timeout.setText(String.valueOf(millisUntilFinished / 1000));

}

public void onFinish() {

showEndingNormalDialog();

}

};

timer.start();

}

public void inital(){

chengyu_et=findViewById(R.id.chengyu_et);

sure=findViewById(R.id.sure);

back=findViewById(R.id.chengyujielong_iv_back);

word1=findViewById(R.id.word_1);

word2=findViewById(R.id.word_2);

word3=findViewById(R.id.word_3);

word4=findViewById(R.id.word_4);

word5=findViewById(R.id.word_5);

word6=findViewById(R.id.word_6);

word7=findViewById(R.id.word_7);

word8=findViewById(R.id.word_8);

timeout=findViewById(R.id.timeout);

level=findViewById(R.id.level);

chengjiebg=findViewById(R.id.chengjiebg);

}

public void onClick(View view) {

switch (view.getId()){

case R.id.chengyujielong_iv_back:

Intent intent3 = new Intent(ChengYuJieLongActivity.this, MainActivity.class);

startActivity(intent3);

break;

case R.id.sure:

str=chengyu_et.getText().toString();

if(str.length()!=4){

Toast toast=new Toast(ChengYuJieLongActivity.this);

LayoutInflater inflater = LayoutInflater.from(ChengYuJieLongActivity.this);

View view2 =inflater.inflate(R.layout.toast,null);

ImageView imageView1=view2.findViewById(R.id.iv_toast);

TextView textView1=view2.findViewById(R.id.tv_toast);

imageView1.setImageResource(R.drawable.input);

textView1.setText("您需要输入四个汉字");

toast.setView(view2);

toast.setDuration(Toast.LENGTH_SHORT);

toast.setGravity(Gravity.CENTER,0,0);

toast.show();

}

else {

myChar = str.toCharArray();

word5.setText(Character.toString(myChar[0]));

word6.setText(Character.toString(myChar[1]));

word7.setText(Character.toString(myChar[2]));

word8.setText(Character.toString(myChar[3]));

Intent intent = new Intent(ChengYuJieLongActivity.this, IsChengYuActivity.class);

intent.putExtra("chengyu", str);

startActivityForResult(intent, 3);

break;

}

public void onSuccess(String json) {

ChengYuJieLongBean cyjlBean = new Gson().fromJson(json, ChengYuJieLongBean.class);

ChengYuJieLongBean.ResultBean resultBean = cyjlBean.getResult();

String mychengyu=resultBean.getData().get(0);

newChar = mychengyu.toCharArray();

word1.setText(Character.toString(newChar[0]));

word2.setText(Character.toString(newChar[1]));

word3.setText(Character.toString(newChar[2]));

word4.setText(Character.toString(newChar[3]));

}

@Override

protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {

super.onActivityResult(requestCode, resultCode, data);

if (requestCode == 3 && resultCode == RESULT_OK) {

String chengyuvalue = data.getStringExtra("chengyu");

if (chengyuvalue.equals("否")) {

Toast.makeText(getApplicationContext(), "您输入的不是成语！",

Toast.LENGTH_SHORT).show();

} else {

if(Character.toString(myChar[0]).equals(word4.getText()) && chengyuvalue.equals("是")){

word5.setBackground(getResources().getDrawable(R.drawable.tianzige));

word6.setBackground(getResources().getDrawable(R.drawable.tianzige));

word7.setBackground(getResources().getDrawable(R.drawable.tianzige));

word8.setBackground(getResources().getDrawable(R.drawable.tianzige));

showNormalDialog();

}

else {

if (Integer.parseInt(timeout.getText().toString()) > 150) {

Toast toast = new Toast(getApplicationContext());

LayoutInflater inflater = LayoutInflater.from(ChengYuJieLongActivity.this);

View view2 = inflater.inflate(R.layout.toast, null);

ImageView imageView1 = view2.findViewById(R.id.iv_toast);

TextView textView1 = view2.findViewById(R.id.tv_toast);

imageView1.setImageResource(R.drawable.fighting);

textView1.setText("您输入的成语不正确哦!还有时间哦加油加油!");

toast.setView(view2);

toast.setDuration(Toast.LENGTH_SHORT);

toast.setGravity(Gravity.CENTER, 0, 0);

toast.show();

} else{

Toast toast = new Toast(ChengYuJieLongActivity.this);

LayoutInflater inflater = LayoutInflater.from(ChengYuJieLongActivity.this);

View view2 = inflater.inflate(R.layout.toast, null);

ImageView imageView1 = view2.findViewById(R.id.iv_toast);

TextView textView1 = view2.findViewById(R.id.tv_toast);

imageView1.setImageResource(R.drawable.wrong);

textView1.setText("您输入的成语不正确哦");

toast.setView(view2);

toast.setDuration(Toast.LENGTH_SHORT);

toast.setGravity(Gravity.CENTER, 0, 0);

toast.show();

}

private void showNormalDialog(){

timer.cancel();

final AlertDialog.Builder normalDialog =

new AlertDialog.Builder(ChengYuJieLongActivity.this);

normalDialog.setIcon(R.drawable.like);

normalDialog.setTitle("恭喜您通过本关");

String s=String.valueOf(300-Integer.parseInt(timeout.getText().toString()));

normalDialog.setMessage("仅用了"+s+"秒");

normalDialog.setPositiveButton("下一关",

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Intent intent = new Intent(ChengYuJieLongActivity.this, ChengYuJieLongActivity.class);

i++;

intent.putExtra("level", i);

intent.putExtra("accchengyu", str);

startActivity(intent);

}

});

normalDialog.setNegativeButton("退出游戏",

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Intent intent = new

private void showEndingNormalDialog(){

final AlertDialog.Builder normalDialog =

new AlertDialog.Builder(ChengYuJieLongActivity.this);

normalDialog.setIcon(R.drawable.heartbroken);

normalDialog.setTitle("游戏结束啦,恭喜您通关到第"+i+"关");

normalDialog.setPositiveButton("重玩",

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Intent intent = new Intent(ChengYuJieLongActivity.this, ChengYuJieLongActivity.class);

startActivity(intent);

}

});

normalDialog.setNegativeButton("退出游戏",

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Intent intent = new Intent(ChengYuJieLongActivity.this, MainActivity.class);

startActivity(intent);

}

});

normalDialog.show();

}

3.4.3 运行截图

4 总结体会

在开发中华字典系统的过程中，我深刻体会到了Java编程的魅力和挑战性。通过设计并实现拼音查询、部首查询、成语查询等多个功能模块，我不仅提升了自己的编程能力，还加深了对数据库操作、前后端交互等技术的理解。同时，成语接龙小游戏的加入为系统增加了趣味性，也提升了用户的参与度和满意度。整个开发过程虽然充满了挑战，但收获颇丰，让我更加坚定了继续深入学习Java编程的决心。

5 附录

源码文件清单

Java代码、Layout布局