博客> 企业分布式微服务云SpringCloud SpringBoot mybatis (二十一)构建restful API
企业分布式微服务云SpringCloud SpringBoot mybatis (二十一)构建restful API
2018-09-19 03:16 评论:0 阅读:316 candyeep
JAVA Spring springcloud springBoot springmvc

引入依赖

在pom文件引入mybatis-spring-boot-starter的依赖:

org.mybatis.spring.boot mybatis-spring-boot-starter 1.3.0

引入数据库连接依赖:

mysql mysql-connector-java runtime
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>1.0.29</version>
    </dependency>

引入数据源

application.properties配置文件中引入数据源:

spring.datasource.url=jdbc:mysql://localhost:3306/test spring.datasource.username=root spring.datasource.password=123456 spring.datasource.driver-class-name=com.mysql.jdbc.Driver 这样,springboot就可以访问数据了。

创建数据库表

建表语句:

-- create table account

DROP TABLE account IF EXISTS

CREATE TABLE account ( id int(11) NOT NULL AUTO_INCREMENT, name varchar(20) NOT NULL, money double DEFAULT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8; INSERT INTO account VALUES ('1', 'aaa', '1000'); INSERT INTO account VALUES ('2', 'bbb', '1000'); INSERT INTO account VALUES ('3', 'ccc', '1000'); dao层

@Mapper public interface AccountMapper {

@Insert("insert into account(name, money) values(#{name}, #{money})")
int add(@Param("name") String name, @Param("money") double money);

@Update("update account set name = #{name}, money = #{money} where id = #{id}")
int update(@Param("name") String name, @Param("money") double money, @Param("id") int  id);

@Delete("delete from account where id = #{id}")
int delete(int id);

@Select("select id, name as name, money as money from account where id = #{id}")
Account findAccount(@Param("id") int id);

@Select("select id, name as name, money as money from account")
List<Account> findAccountList();

} service层

@Service public class AccountService { @Autowired private AccountMapper accountMapper;

public int add(String name, double money) {
    return accountMapper.add(name, money);
}
public int update(String name, double money, int id) {
    return accountMapper.update(name, money, id);
}
public int delete(int id) {
    return accountMapper.delete(id);
}
public Account findAccount(int id) {
    return accountMapper.findAccount(id);
}
public List<Account> findAccountList() {
    return accountMapper.findAccountList();
}

} controller层,构建restful API

package com.forezp.web;

import com.forezp.entity.Account; import com.forezp.service.AccountService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*;

import java.util.List;

/**

  • Created by fangzhipeng on 2017/4/20. */ @RestController @RequestMapping("/account") public class AccountController {

    @Autowired AccountService accountService;

    @RequestMapping(value = "/list", method = RequestMethod.GET) public List getAccounts() { return accountService.findAccountList(); }

    @RequestMapping(value = "/{id}", method = RequestMethod.GET) public Account getAccountById(@PathVariable("id") int id) { return accountService.findAccount(id); }

    @RequestMapping(value = "/{id}", method = RequestMethod.PUT) public String updateAccount(@PathVariable("id") int id, @RequestParam(value = "name", required = true) String name, @RequestParam(value = "money", required = true) double money) { int t= accountService.update(name,money,id); if(t==1) { return "success"; }else { return "fail"; }

    }

    @RequestMapping(value = "/{id}", method = RequestMethod.DELETE) public String delete(@PathVariable(value = "id")int id) { int t= accountService.delete(id); if(t==1) { return "success"; }else { return "fail"; }

    }

    @RequestMapping(value = "", method = RequestMethod.POST) public String postAccount(@RequestParam(value = "name") String name, @RequestParam(value = "money") double money) {

    int t= accountService.add(name,money); if(t==1) { return "success"; }else { return "fail"; }

    }

} 通过postman测试通过。

源码来源:http://minglisoft.cn/honghu/technology.html

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