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小程序商城java代码,小程序商城源代码免费下载
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初学者java小程序，求java大神帮我补充一下空缺代码！
import java.util.Arrays;
public class Array2 {
public static void main(String[] args) {
//声明一个名为myArray的数组,该数组有2行,每行列数不等,并为其分配内存空间
int[][] myArray = new int[2][];
myArray[0] = new int[5]; //第一行有5个元素,并为其分配内存空间
myArray[1] = new int[10]; //第二行有10个元素,并为其分配内存空间
for (int j = 0; j myArray[0].length; j++)
//用1-10之间的随机整数给第一行元素赋值
myArray[0][j] = (int)(Math.random() * 10);
//用100-200之间的随机整数给第二行元素赋值
for (int j=0; j myArray[1].length; j++)
myArray[1][j]=(int)(Math.random() * 100 + 100);
for (int i=0; i myArray.length; i++){ //输出myArray数组各元素的值
for (int j=0; j myArray[i].length; j++){
System.out.print(myArray[i][j]+" ");
}
System.out.println();
}
Arrays.sort(myArray[0]); //对第一行元素排序
Arrays.sort(myArray[1]); //对第二行元素排序
System.out.println("\n排序后的数组元素: ");
for (int i=0; imyArray.length;i++){ //再次输出myArray数组各元素的值
for (int j=0; jmyArray[i].length;j++){
System.out.print(myArray[i][j]+" ");
}
System.out.println();
}
}
}
7 3 9 6 7
103 165 166 148 103 179 128 109 120 156
排序后的数组元素:
3 6 7 7 9
103 103 109 120 128 148 156 165 166 179
相关问答
Q1: 微信小程序商城，前端PHP后端java，怎么部署呢？
打开项目根目录文件夹下。执行 mvn eclipse:eclipse命令，会生成项目结构，然后在eclipse导入就可以，不过有缘分的是我们用到了一个项目，哈哈，望给个最佳奥，可以一起探讨
Q2: 小程序后台获取openId解密的java代码怎么写
一、获取code
将code作为参数传递过来
//如果有code，说明是微信小程序，根据code获取openId
//classify用于标识是哪个小程序
if (!CheckUtil.checkNulls( keUser.getCode(),keUser.getClassify())){
//
String openid = OpenIdUtil.oauth2GetOpenid(keUser.getCode(),keUser.getClassify());
printParamsLog(openid, logger);
keUser.setUserId(openid);
}1234567812345678
二、工具类
package com.util;
import net.sf.json.JSONObject;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import java.util.HashMap;
import java.util.Map;
/**
* @author xsx
*/
public class OpenIdUtil {
public static String oauth2GetOpenid(String code,String classify) {
String appid="";
String appsecret="";
switch (classify){
case "1":
//自己的配置appid
appid = "**********";
//自己的配置APPSECRET;
appsecret = "**********";
break;
case "2":
appid = "**********";
appsecret = "************";
break;
case "3":
appid = "**********";
appsecret = "************";
break;
case "4":
appid = "**********";
appsecret = "************";
break;
case "5":
appid = "**********";
appsecret = "************";
}
//授权（必填）
String grant_type = "authorization_code";
//URL
String requestUrl = "";
//请求参数
String params = "appid=" + appid + "secret=" + appsecret + "js_code=" + code + "grant_type=" + grant_type;
//发送请求
String data = HttpUtil.get(requestUrl, params);
//解析相应内容（转换成json对象）
JSONObject json = JSONObject.fromObject(data);
//用户的唯一标识（openid）
String Openid =String.valueOf(json.get("openid"));
//System.out.println(Openid);
return Openid;
}
}
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960
三、发送请求的工具类
package com.util;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;
/**
* @author xsx
*/
public class HttpUtil {
/**
* 向指定URL发送GET方法的请求
*
* @param url
* 发送请求的URL
* @param param
* 请求参数，请求参数应该是 name1=value1name2=value2 的形式。
* @return String 所代表远程资源的响应结果
*/
public static String get(String url,String param){
String result = "";
BufferedReader in = null;
try {
String urlNameString = url + "?" + param;
//System.out.println(urlNameString);
URL realUrl = new URL(urlNameString);
// 打开和URL之间的连接
URLConnection connection = realUrl.openConnection();
// 设置通用的请求属性
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 建立实际的连接
connection.connect();
// 获取所有响应头字段
MapString, ListString map = connection.getHeaderFields();
// 遍历所有的响应头字段
/*for (String key : map.keySet()) {
System.out.println(key + "---" + map.get(key));
}*/
// 定义 BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送GET请求出现异常！" + e);
e.printStackTrace();
}
// 使用finally块来关闭输入流
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return result;
}
}
Q3: 如何用java实现抓取商城商品信息到自己的页面上来！！！ 求解啊，大神们！！
对于加密的网站还没去研究，不知道能不能抓取，现在只是对一些没有加密的网站进行网页数据抓取。刚刚开始写的时候以为很多网站都能抓取，但是发现很多都加密了，本来以为一些地址可以通过网页数据检测工具测出他的数据变化，但是只能监测到一些通过js显示的数据，依然不能抓取到加密的网站。嗨，这个问题以后再说吧。
[java]
import java.net.* ;
import java.io.* ;
import java.util.regex.* ;
public class Capture{
public static void main(String args[])throws Exception{
System.out.println("*************************手机号查询************************") ;
System.out.println("我的位置是：" + new GrabMobile().grabMobileLocation("15023141745")) ;
System.out.println("手机卡类型是：" + new GrabMobile().grabMobileType("15023141745")) ;
System.out.println("我的邮编是：" + new GrabMobile().grabMobilePost("15023141745")) ;
System.out.println("*************************身份证查询************************") ;
System.out.println("我的性别是：" + new GrabIdentity().grabIdentitySex("362203199208243575")) ;
System.out.println("我的生日是：" + new GrabIdentity().grabIdentityBirth("362203199208243575")) ;
System.out.println("我的家乡是：" + new GrabIdentity().grabIdentityHome("362203199208243575")) ;
}
}
class GrabMobile{
public String grabMobileLocation(String m)throws Exception{
String strUrl = ";mobile=" + m;
URL url = new URL(strUrl) ;
HttpURLConnection httpUrlCon = (HttpURLConnection)url.openConnection() ;
InputStreamReader inRead = new InputStreamReader(httpUrlCon.getInputStream(),"GBK") ;
BufferedReader bufRead = new BufferedReader(inRead) ;
StringBuffer strBuf = new StringBuffer() ;
String line = "" ;
while ((line = bufRead.readLine()) != null) {
strBuf.append(line);
}
String strStart = "卡号归属地" ;
String strEnd = "卡 类 型";
String strAll = strBuf.toString() ;
int start = strAll.indexOf(strStart) ;
int end = strAll.indexOf(strEnd) ;
String result = strAll.substring(start+42,end-33) ;
result = drawChMob(result) ;
return result ;
}
public String grabMobileType(String m)throws Exception{
String strUrl = ";mobile=" + m;
URL url = new URL(strUrl) ;
HttpURLConnection httpUrlCon = (HttpURLConnection)url.openConnection() ;
InputStreamReader inRead = new InputStreamReader(httpUrlCon.getInputStream(),"GBK") ;
BufferedReader bufRead = new BufferedReader(inRead) ;
StringBuffer strBuf = new StringBuffer() ;
String line = "" ;
while ((line = bufRead.readLine()) != null) {
strBuf.append(line);
}
String strStart = "卡 类 型" ;
String strEnd = "TD align=\"center\"区 号/TD";
String strAll = strBuf.toString() ;
int start = strAll.indexOf(strStart) ;
int end = strAll.indexOf(strEnd) ;
String result = strAll.substring(start+12,end) ;
result = drawChMob(result) ;
result = result.substring(1) ;
return result ;
}
public String grabMobilePost(String m)throws Exception{
String strUrl = ";mobile=" + m;
URL url = new URL(strUrl) ;
HttpURLConnection httpUrlCon = (HttpURLConnection)url.openConnection() ;
InputStreamReader inRead = new InputStreamReader(httpUrlCon.getInputStream(),"GBK") ;
BufferedReader bufRead = new BufferedReader(inRead) ;
StringBuffer strBuf = new StringBuffer() ;
String line = "" ;
while ((line = bufRead.readLine()) != null) {
strBuf.append(line);
}
String strStart = "邮 编" ;
String strEnd = "更详细的..";
String strAll = strBuf.toString() ;
int start = strAll.indexOf(strStart) ;
int end = strAll.indexOf(strEnd) ;
String result = strAll.substring(start+40,end-55) ;
return result ;
}
public String drawChMob(String str){
StringBuffer strBuf = new StringBuffer() ;
String regex="([\u4e00-\u9fa5]+)";
Matcher matcher = Pattern.compile(regex).matcher(str);
while(matcher.find()){
strBuf.append(matcher.group(0)).toString() ;
}
return strBuf.toString() ;
}
}
class GrabIdentity{
public String grabIdentitySex(String userid)throws Exception{
String strUrl = ";userid=" + userid + "B1=%B2%E9+%D1%AF";
URL url = new URL(strUrl) ;
HttpURLConnection httpUrlCon = (HttpURLConnection)url.openConnection() ;
InputStreamReader inRead = new InputStreamReader(httpUrlCon.getInputStream(),"GBK") ;
BufferedReader bufRead = new BufferedReader(inRead) ;
StringBuffer strBuf = new StringBuffer() ;
String line = "" ;
while ((line = bufRead.readLine()) != null) {
strBuf.append(line);
}
String strStart = " 别" ;
String strEnd = "出生日期";
String strAll = strBuf.toString() ;
int start = strAll.indexOf(strStart) ;
int end = strAll.indexOf(strEnd) ;
String result = strAll.substring(start+7,end) ;
result = drawCh(result) ;
return result ;
}
public String grabIdentityBirth(String userid)throws Exception{
String strUrl = ";userid=" + userid + "B1=%B2%E9+%D1%AF";
URL url = new URL(strUrl) ;
HttpURLConnection httpUrlCon = (HttpURLConnection)url.openConnection() ;
InputStreamReader inRead = new InputStreamReader(httpUrlCon.getInputStream(),"GBK") ;
BufferedReader bufRead = new BufferedReader(inRead) ;
StringBuffer strBuf = new StringBuffer() ;
String line = "" ;
while ((line = bufRead.readLine()) != null) {
strBuf.append(line);
}
String strStart = "出生日期：/tdtd class=\"tdc2\"" ;
String strEnd = "/tdtrtrtd class=";
String strAll = strBuf.toString() ;
int start = strAll.indexOf(strStart) ;
int end = strAll.indexOf(strEnd) ;
String result = strAll.substring(start+27,end) ;
return result ;
}
public String grabIdentityHome(String userid)throws Exception{
String strUrl = ";userid=" + userid + "B1=%B2%E9+%D1%AF";
URL url = new URL(strUrl) ;
HttpURLConnection httpUrlCon = (HttpURLConnection)url.openConnection() ;
InputStreamReader inRead = new InputStreamReader(httpUrlCon.getInputStream(),"GBK") ;
BufferedReader bufRead = new BufferedReader(inRead) ;
StringBuffer strBuf = new StringBuffer() ;
String line = "" ;
while ((line = bufRead.readLine()) != null) {
strBuf.append(line);
}
String strStart = "证 地：/tdtd class=\"tdc2\"" ;
String strEnd = "br//td/trtrtd class=\"tdc3\" valign=\"top\" align=\"right\"部分或" ;
String strAll = strBuf.toString() ;
int start = strAll.indexOf(strStart) ;
int end = strAll.indexOf(strEnd) ;
String result = strAll.substring(start+31,end) ;
return result ;
}
public String drawCh(String str){
StringBuffer strBuf = new StringBuffer() ;
String regex="([\u4e00-\u9fa5]+)";
Matcher matcher = Pattern.compile(regex).matcher(str);
if(matcher.find()){
str = strBuf.append(matcher.group(0)).toString() ;
}
return str ;
}
}
待会传上改装成的android小程序，可以手机号查询和身份证查询。
Q4: Java~有哪位大虾可以帮我写一个小程序呀,用Java做一个界面,上面有四个按钮分别是红色,黄色,蓝色,退出,
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Screen{
public static void main(String args[]){
new Win();
}
static class Win extends JFrame implements ActionListener{
JPanel jp = new JPanel();
JButton jb[] = new JButton[4];
public Win(){
this.setBounds(0, 0, 320, 320);
Color c[] = {Color.red,Color.yellow,Color.blue};
jp.setBackground(Color.black);
for(int i = 0 ; i 4 ; i++){
jb[i] = new JButton();
if(i!=3){
jb[i].setBackground(c[i]);
}else{
jb[i].setText("退出");
}
jb[i].addActionListener(this);
jp.add(jb[i]);
}
this.add(jp);
this.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
if(!((JButton)e.getSource()).getText().equals("退出")){//如果不是退出按钮，则换颜色
jp.setBackground(((JButton)e.getSource()).getBackground());
}
else
System.exit(0);//退出
}
}
}
