java程序基础操作MySQL数据库
欢迎进入Java社区论坛,与200万技术人员互动交流 >>进入 对MySQL数据库内容进行插入、查找、删除等一系列操作代码及运行结果 数据库内容: java源代码:(代码实现的是查询成绩为100的人员信息,至于其他功能的 代码中有注释) 注意:在eclipse里运行程序的
欢迎进入Java社区论坛,与200万技术人员互动交流 >>进入
对MySQL数据库内容进行插入、查找、删除等一系列操作代码及运行结果
数据库内容:
java源代码:(代码实现的是查询成绩为100的人员信息,至于其他功能的
代码中有注释)
注意:在eclipse里运行程序的时候,要工程里插入jar包,否则运行异常!
import java.sql.*;
import java.io.*;
class database_manage {
public Connection conn = null;
public ResultSet rs = null;
private String DatabaseDriver = "com.mysql.jdbc.Driver";
// DataSource 数据源名称DSN
private String DatabaseConnStr = "jdbc:mysql://localhost:3306/people_manage?useUnicode=true&characterEncoding=utf8"
+ ",root,root";
public void setDatabaseDriver(String Driver) {
this.DatabaseDriver = Driver;
}
public String getDatabaseDriver() {
return (this.DatabaseDriver);
}
public void setDatabaseConnStr(String ConnStr) {
this.DatabaseConnStr = ConnStr;
}
public String getDatabaseConnStr() {
return (this.DatabaseConnStr);
}
public database_manage() {// 构造函数连接数据库
try {
Class.forName(DatabaseDriver);
} catch (java.lang.ClassNotFoundException e) {
System.err.println("加载驱动器有错误:" + e.getMessage());
System.out.print("执行插入有错误:" + e.getMessage());// 输出到客户端
}
}
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