SpringCloud 从入门到精通 04--- 支付模块 02

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发布于: 2021 年 01 月 11 日

在SpringCloud 从入门到精通 02--- 创建订单模块 01中,我们只是配置了端口信息和数据库信息,并没有写任何的业务逻辑,本节,我们写个最简单的业务逻辑,通过接口实现订单的生成和查询

回到cloud-payment-8001模块中，分别创建程序入口CloudPaymentApplication,通用结果类CommonResult,接口CPaymentService，实现类CPaymentServiceImpl，mybatis的配置类MybatisConfig ，接口PaymentController，目录分布如下

这里逻辑比较简单，直接贴代码

package com.felix.payment;
import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplicationpublic class CloudPaymentApplication {    public static void main(String[] args) {        SpringApplication.run(CloudPaymentApplication.class,args);    }}

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package com.felix.payment.result;
public class CommonResult<T> {    private Integer code;    private String msg;    private String status;    private T data;
    public CommonResult(Integer code, String msg, String status, T data) {        this.code = code;        this.msg = msg;        this.status = status;        this.data = data;    }        public CommonResult() {    }
    public static <T> CommonResult<T> success(T data){        return new CommonResult(200,"操作成功","success",data);    }
    public static <T> CommonResult<T> failed() {        return new CommonResult(500, "操作失败", "failed", null);    }
    public Integer getCode() {        return code;    }
    public void setCode(Integer code) {        this.code = code;    }
    public String getMsg() {        return msg;    }
    public void setMsg(String msg) {        this.msg = msg;    }
    public String getStatus() {        return status;    }
    public void setStatus(String status) {        this.status = status;    }
    public T getData() {        return data;    }
    public void setData(T data) {        this.data = data;    }}

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package com.felix.payment.service;
import com.felix.payment.result.CommonResult;
import java.util.Map;
public interface CPaymentService {    CommonResult createPayment(String serialNo);    CommonResult getPayment(Long id);}

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package com.felix.payment.service.serviceImpl;
import com.felix.mbg.mapper.CPaymentMapper;import com.felix.mbg.model.CPayment;import com.felix.payment.result.CommonResult;import com.felix.payment.service.CPaymentService;import org.springframework.stereotype.Service;
import javax.annotation.Resource;import java.util.HashMap;import java.util.Map;
@Servicepublic class CPaymentServiceImpl implements CPaymentService {    @Resource    private CPaymentMapper paymentMapper;
    public CommonResult createPayment(String serialNo) {        CPayment payment = new CPayment();        payment.setSerialNo(serialNo);        int result = paymentMapper.insert(payment);        if (result <= 0){            return CommonResult.failed();        }        return CommonResult.success(payment);    }
    public CommonResult getPayment(Long id) {        CPayment payment = paymentMapper.selectByPrimaryKey(id);        if (payment == null){            return CommonResult.failed();        }        return CommonResult.success(payment);    }}

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package com.felix.payment.config;
import org.mybatis.spring.annotation.MapperScan;import org.springframework.context.annotation.Configuration;import org.springframework.transaction.annotation.EnableTransactionManagement;
@Configuration@EnableTransactionManagement@MapperScan({"com.felix.mbg.mapper"})public class MybatisConfig {}

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package com.felix.payment.controller;
import com.felix.payment.result.CommonResult;import com.felix.payment.service.CPaymentService;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestMapping;
import javax.annotation.Resource;import java.util.Map;
@Controller@RequestMapping("/payment")public class PaymentController {    @Resource    private CPaymentService paymentService;
    @PostMapping(value = "/create")    public CommonResult createPayment(String serialNo){        return paymentService.createPayment(serialNo);    }
    @GetMapping(value = "/{id}")    public CommonResult getPayment(@PathVariable Long id){        return paymentService.getPayment(id);    }}

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到这里，订单的基本逻辑已经可以了，我们使用`postman`测试下结果,先尝试插入一条数据

OK,这里没什么问题,然后获取一下数据

这里在获取数据的时候,发现msg的编码有问题,返回的中文乱码,为了解决这个问题,我们添加个配置文件,修改一下返回数据时的编码方式,在config添加一个类CommonMVCConfiguration实现WebMvcConfigurer,代码如下

package com.felix.payment.config;
import org.springframework.context.annotation.Configuration;import org.springframework.http.converter.HttpMessageConverter;import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import java.util.List;
import static java.nio.charset.StandardCharsets.UTF_8;
@Configurationpublic class CommonMVCConfiguration implements WebMvcConfigurer{    @Override    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {        converters.stream()                .filter(converter -> converter instanceof MappingJackson2HttpMessageConverter)                .findFirst()                .ifPresent(converter -> ((MappingJackson2HttpMessageConverter) converter).setDefaultCharset(UTF_8));    }}