使用Spring boot 快速创建项目-蒲公英云

使用Spring boot 快速创建项目

Spring boot 是整合了框架，以快速开发为目的，大大节省了开发效率。

以下是创建项目。利用STS 4.0软件使用时必须安装eclipse 和 sts 4.0 。方可打开sts4.0

创建好的项目然后建立项目结构

建立application.yml文件配置

server:
  port: 8888
spring:
  datasource:
    url: jdbc:sqlserver://10.10.10.2:1433;databaseName=scmis000
    username: sc
    password: redone
    dbcp2:
      driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver
      initial-size: 5
      min-idle: 10
      max-wait-millis: 10000

系统生成的spring boot 主类

package com.xukai;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
//mapperscan扫描。这样的话就不用一个个配置了。
@MapperScan("com.xukai.mapper")
@SpringBootApplication
public class XmHelperApplication {
    public static void main(String[] args) {
        SpringApplication.run(XmHelperApplication.class, args);
    }
}

用mybatis-generator-core-1.3.7.jar 来逆向生成数据库mapper和po类

直接用注解的形式写代码。方便快捷。

package com.xukai.mapper;
import com.xukai.po.Personnel;
import java.util.List;
import org.apache.ibatis.annotations.Select;
public interface PersonnelMapper {
    @Select("SELECT * FROM personnel WHERE PersonnelId = #{id}")
    Personnel getPersonnelById(String id);
    @Select("select * from personnel")
    List<Personnel> selectAll();
    @Select("select Password from OperPw where PersonId = #{id}")
    String getPWDByID(String id); 
}

这是控制器

package com.xukai.controller;
import java.rmi.RemoteException;
import java.util.HashMap;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.xukai.mapper.PersonnelMapper;
import com.xukai.po.Personnel;
//这个注解是不返回页面，而是返回json数据
@RestController
public class LoginController {
    @Autowired
    private PersonnelMapper personnelMapper;
    @RequestMapping(value = "login", method = RequestMethod.POST)
    public String helloWorld(@RequestBody Map<String, String> maps) throws JsonProcessingException, RemoteException {
        ObjectMapper objectMapper = new ObjectMapper();
        Map<String, String> map = new HashMap<>();
        String resultString;
        String username = maps.get("username");
        String password = maps.get("password");
        //查询是否已经关联
        Personnel personnel = personnelMapper.getPersonnelById(username);
        if (personnel == null) {
            map.put("success", "0");
            map.put("reason", "无此账号!");
            resultString = objectMapper.writeValueAsString(map);
        } else {
            String encryptPWD = personnelMapper.getPWDByID(personnel.getPersonnelid());
            personnel.setEncryptPWD(encryptPWD);
            personnel.setPassword(pwd); 
            //判断密码是否正确
            if (password.equals(pwd)) {
                resultString = objectMapper.writeValueAsString(personnel);
            } else {
                map.put("success", "0");
                map.put("reason", "密码不正确!");
                resultString = objectMapper.writeValueAsString(map);
            }
        }
        return resultString; 
    }
}