2024.6.3

第六十二天

所花时间：2小时

代码量：200+

博客量：1

了解到的知识点：前几天老师留了一个新作业，就是将五一的时候的政策查询系统web端改写用Android端实现，下面是实体类和数据库连接的代码

package com.example.keji.entity;

public class policy {
    private String id;
    private String name;//
    private String type;//
    private String category;
    private String range;
    private String document;
    private String organ;//
    private String viadata;
    private String pubdata;//
    private String perdata;

    public policy() {
    }

    public policy(String id, String name, String type, String category, String range, String document, String organ, String viadata, String pubdata, String perdata) {
        this.id = id;
        this.name = name;
        this.type = type;
        this.category = category;
        this.range = range;
        this.document = document;
        this.organ = organ;
        this.viadata = viadata;
        this.pubdata = pubdata;
        this.perdata = perdata;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getCategory() {
        return category;
    }

    public void setCategory(String category) {
        this.category = category;
    }

    public String getRange() {
        return range;
    }

    public void setRange(String range) {
        this.range = range;
    }

    public String getDocument() {
        return document;
    }

    public void setDocument(String document) {
        this.document = document;
    }

    public String getOrgan() {
        return organ;
    }

    public void setOrgan(String organ) {
        this.organ = organ;
    }

    public String getViadata() {
        return viadata;
    }

    public void setViadata(String viadata) {
        this.viadata = viadata;
    }

    public String getPubdata() {
        return pubdata;
    }

    public void setPubdata(String pubdata) {
        this.pubdata = pubdata;
    }

    public String getPerdata() {
        return perdata;
    }

    public void setPerdata(String perdata) {
        this.perdata = perdata;
    }
}

package com.example.keji.utils;

import java.sql.Connection;
import java.sql.DriverManager;

/**
 * function： 数据库工具类，连接数据库用
 */
public class JDBCUtils {
    private static final String TAG = "mysql-party-JDBCUtils";

    private static String driver = "com.mysql.jdbc.Driver";// MySql驱动

    private static String dbName = "tb_user";// 数据库名称

    private static String user = "root";// 用户名

    private static String password = "ADGJL12345syl";// 密码

    public static Connection getConn(){

        Connection connection = null;
        try{
            Class.forName(driver);// 动态加载类
            String ip = "192.168.43.157";// 写成本机地址，不能写成localhost，同时手机和电脑连接的网络必须是同一个

            // 尝试建立到给定数据库URL的连接
            connection = DriverManager.getConnection("jdbc:mysql://" + ip + ":3306/" + dbName,
                    user, password);

        }catch (Exception e){
            e.printStackTrace();
        }
        return connection;
    }
}