springboot + mybaits + oracle 项目

1.pom设置 

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.itstudy</groupId>
    <artifactId>demo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <name>demo</name>
    <description>demo</description>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
        <relativePath/>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
<!--            <version>1.0.0</version>-->
            <version>1.3.2</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <!-- 链接oracle 11 -->
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc6</artifactId>
            <version>11.1.0.7.0</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.30</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

2.src/main/resources/application.properties

server.port=9101
server.display-name=
server.name=conduct-rules-ranking

spring.datasource.driverClassName=oracle.jdbc.driver.OracleDriver
#设置数据库链接
#spring.datasource.url=jdbc:oracle:thin:@ip:1521:ufnc
spring.datasource.url=jdbc:oracle:thin:@ip:1521/ufnc
spring.datasource.username=username
spring.datasource.password=password

#配置映射路径
mybatis.mapperLocations=classpath:mapper/*.xml
#打印sql语句
logging.level.com.itstudy.demo.dao=debug

3.src/main/resources/mapper/RankingMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.itstudy.demo.dao.RankingMapper">
    <resultMap id="BaseResultMap" type="com.itstudy.demo.domain.RankingInfo">
        <result property="zuzhixz" column="zuzhixz"/>
        <result property="zuzhifl" column="zuzhifl"/>
        <result property="zongshu" column="zongshu"/>
        <result property="yikaoshi" column="yikaoshi"/>
        <result property="bilv" column="bilv"/>
    </resultMap>
    <select id="findRankingAll" resultMap="BaseResultMap">

        with

        s1 as  (
        select zuzhixz,zuzhifl,count(*) as zongshu from view_active_business
        where unitname not like '%分公司%' and unitname not like '%事业部%'
        group by zuzhifl,zuzhixz ),
        s2 as (select zuzhixz,zuzhifl,count(*) as yikaoshi  from view_active_business
        where (unitname not like '%分公司%' and unitname not like '%事业部%') and zt ='正常'
        group by zuzhifl,zuzhixz )

        select a.zuzhixz,a.zuzhifl,a.zongshu,nvl(b.yikaoshi,0) as yikaoshi,to_char(nvl(b.yikaoshi,0)/nvl(a.zongshu,1),'FM0.0000') as bilv from s1 a left join s2 b on a.zuzhifl = b.zuzhifl where a.zongshu &gt;= 30

    </select>
</mapper>

3. src/main/java/com/itstudy/demo/dao/RankingMapper.java

package com.itstudy.demo.dao;

import com.itstudy.demo.domain.RankingInfo;
import org.apache.ibatis.annotations.Mapper;

import java.util.List;

@Mapper
public interface RankingMapper {

    List<RankingInfo> findRankingAll();
}

4. src/main/java/com/itstudy/demo/domain/RankingInfo.java

package com.itstudy.demo.domain;

/**
 * 排序信息
 */
public class RankingInfo {

    private String zuzhixz;
    private String zuzhifl; //组织分类
    private String zongshu; //总人数
    private String yikaoshi; //已考试人数
    private String bilv; //比率


    public String getZuzhifl() {
        return zuzhifl;
    }

    public void setZuzhifl(String zuzhifl) {
        this.zuzhifl = zuzhifl;
    }

    public String getZongshu() {
        return zongshu;
    }

    public void setZongshu(String zongshu) {
        this.zongshu = zongshu;
    }

    public String getYikaoshi() {
        return yikaoshi;
    }

    public void setYikaoshi(String yikaoshi) {
        this.yikaoshi = yikaoshi;
    }

    public String getBilv() {
        return bilv;
    }

    public void setBilv(String bilv) {
        this.bilv = bilv;
    }

    public String getZuzhixz() {
        return zuzhixz;
    }

    public void setZuzhixz(String zuzhixz) {
        this.zuzhixz = zuzhixz;
    }
}

5. src/main/java/com/itstudy/demo/controller/RankingController.java

package com.itstudy.demo.controller;

import com.itstudy.demo.dao.RankingMapper;
import com.itstudy.demo.domain.RankingInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;

@RestController
public class RankingController {
    @Autowired
    private RankingMapper rankingMapper;

    private ConcurrentHashMap<String, Object> concurrentHashMap = new ConcurrentHashMap<String, Object>();

    private String cache_key = "ranking_data";

    @GetMapping("/ranking")
    public List<RankingInfo> getUser() {

        List<RankingInfo> query = null;
        if (concurrentHashMap != null && concurrentHashMap.containsKey(cache_key)) {
            try {
                query = (ArrayList<RankingInfo>) concurrentHashMap.get(cache_key);
            } catch (Exception ex) {

            }
        }

        if (query != null) {

            System.out.println("缓存数据返回...");
            return query;
        }

        System.out.println("数据库查询...");
        query = rankingMapper.findRankingAll();

        query.sort(new Comparator<RankingInfo>() {
            @Override
            public int compare(RankingInfo o1, RankingInfo o2) {


                if (o1.getBilv() == null || o2.getBilv() == null) {
                    return 0;
                }

                return o2.getBilv().compareToIgnoreCase(o1.getBilv());
            }
        });

        if (concurrentHashMap == null) {
            concurrentHashMap = new ConcurrentHashMap<String, Object>();
        }

        concurrentHashMap.put(cache_key, query);

        return query;

    }

    //15分钟更新一次缓存数据
    @Scheduled(fixedDelay = 900000)
    public void updateCacheData() {

        List<RankingInfo> query = rankingMapper.findRankingAll();

        query.sort(new Comparator<RankingInfo>() {
            @Override
            public int compare(RankingInfo o1, RankingInfo o2) {


                if (o1.getBilv() == null || o2.getBilv() == null) {
                    return 0;
                }

                return o2.getBilv().compareToIgnoreCase(o1.getBilv());
            }
        });

        if (concurrentHashMap == null) {
            concurrentHashMap = new ConcurrentHashMap<String, Object>();
        }

        concurrentHashMap.put(cache_key, query);

        System.out.println("更新缓存...");
    }
}

6 src/main/java/com/itstudy/demo/Application.java

package com.itstudy.demo;

import org.springframework.boot.Banner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;

/**
 * 考试排名启动类
 *
 */
@SpringBootApplication
@EnableScheduling
public class Application
{
    public static void main( String[] args )
    {
        SpringApplication app = new SpringApplication(Application.class);
        //关闭banner
        app.setBannerMode(Banner.Mode.OFF);
        app.run(args);

    }
}

7 src/main/java/com/itstudy/demo/CorsConfig.java

package com.itstudy.demo;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

/**
 * 实现基本的跨域请求
 *
 * @author admin
 */
@Configuration
public class CorsConfig {
    private CorsConfiguration buildConfig() {
        CorsConfiguration corsConfiguration = new CorsConfiguration();
        corsConfiguration.addAllowedOrigin("*"); // 允许任何域名使用
        corsConfiguration.addAllowedHeader("*"); // 允许任何头
        corsConfiguration.addAllowedMethod("*"); // 允许任何方法（post、get等）
        return corsConfiguration;
    }

    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", buildConfig()); // 对接口配置跨域设置
        return new CorsFilter(source);
    }
}

8.重要说明

使用下面的依赖包,要先进行maven安装

<dependency>

<groupId>com.oracle</groupId>

<artifactId>ojdbc6</artifactId>

<version>11.1.0.7.0</version>

</dependency>

 

1.下载ojdbc6.jar

链接：https://pan.baidu.com/s/1OgKUmExGfxIfMV1yUqFHOw
提取码：f3uy

2. maven安装命令

mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=11.1.0.7.0 -Dpackaging=jar -Dfile=C:\Users\Administrator\Desktop\11.1.0.7.0\ojdbc6-11.1.0.7.0.jar