关于springcloud:SpringCloud服务起步-1service服务

service - 服务

• 商品服务 item service, 端口 8001
• 用户服务 user service, 端口 8101
• 订单服务 order service, 端口 8201

commons 通用我的项目

新建 maven 我的项目

pom.xml

<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>cn.tedu</groupId>
    <artifactId>sp01-commons</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>sp01-commons</name>
    <dependencies>
        <dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-parameter-names</artifactId>
            <version>2.9.8</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-jdk8</artifactId>
            <version>2.9.8</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-jsr310</artifactId>
            <version>2.9.8</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-guava</artifactId>
            <version>2.9.8</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.6</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.26</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.9</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

java 源文件

• pojo

  • Item

package cn.tedu.sp01.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class Item {
    private Integer id;
    private String name;
    private Integer number;
}

• User

package cn.tedu.sp01.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class User {
    private Integer id;
    private String username;
    private String password;
}

• Order

package cn.tedu.sp01.pojo;

import java.util.List;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class Order {
    private String id;
    private User user;
    private List<Item> items;
}

• service

  • ItemService

package cn.tedu.sp01.service;

import java.util.List;

import cn.tedu.sp01.pojo.Item;

public interface ItemService {List<Item> getItems(String orderId);
    void decreaseNumbers(List<Item> list);
}

• UserService

package cn.tedu.sp01.service;

import cn.tedu.sp01.pojo.User;

public interface UserService {User getUser(Integer id);
    void addScore(Integer id, Integer score);
}

• OrderService

package cn.tedu.sp01.service;


import cn.tedu.sp01.pojo.Order;

public interface OrderService {Order getOrder(String orderId);
    void addOrder(Order order);
}

• Util

  • CookieUtil

package cn.tedu.web.util;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CookieUtil {

    /**
     * @param response
     * @param name
     * @param value
     * @param maxAge
     */
    public static void setCookie(HttpServletResponse response,
            String name, String value, String domain, String path, int maxAge) {Cookie cookie = new Cookie(name, value);
        if(domain != null) {cookie.setDomain(domain);
        }
        cookie.setPath(path);
        cookie.setMaxAge(maxAge);
        response.addCookie(cookie);
    }
    public static void setCookie(HttpServletResponse response, String name, String value, int maxAge) {setCookie(response, name, value, null, "/", maxAge);
    }
    public static void setCookie(HttpServletResponse response, String name, String value) {setCookie(response, name, value, null, "/", 3600);
    }
    public static void setCookie(HttpServletResponse response, String name) {setCookie(response, name, "", null,"/", 3600);
    }

    /**
     * @param request
     * @param name
     * @return
     */
    public static String getCookie(HttpServletRequest request, String name) {
        String value = null;
        Cookie[] cookies = request.getCookies();
        if (null != cookies) {for (Cookie cookie : cookies) {if (cookie.getName().equals(name)) {value = cookie.getValue();
                }
            }
        }
        return value;
    }

    /**
     * @param response
     * @param name
     * @return
     */
    public static void removeCookie(HttpServletResponse response, String name, String domain, String path) {setCookie(response, name, "", domain, path, 0);
    }

}

• JsonUtil

package cn.tedu.web.util;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Writer;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang3.StringUtils;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.fasterxml.jackson.datatype.guava.GuavaModule;
import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.module.paramnames.ParameterNamesModule;

import lombok.extern.slf4j.Slf4j;

@Slf4j
public class JsonUtil {
    private static ObjectMapper mapper;
    private static JsonInclude.Include DEFAULT_PROPERTY_INCLUSION = JsonInclude.Include.NON_DEFAULT;
    private static boolean IS_ENABLE_INDENT_OUTPUT = false;
    private static String CSV_DEFAULT_COLUMN_SEPARATOR = ",";
    static {
        try {initMapper();
            configPropertyInclusion();
            configIndentOutput();
            configCommon();} catch (Exception e) {log.error("jackson config error", e);
        }
    }

    private static void initMapper() {mapper = new ObjectMapper();
    }

    private static void configCommon() {config(mapper);
    }

    private static void configPropertyInclusion() {mapper.setSerializationInclusion(DEFAULT_PROPERTY_INCLUSION);
    }

    private static void configIndentOutput() {mapper.configure(SerializationFeature.INDENT_OUTPUT, IS_ENABLE_INDENT_OUTPUT);
    }

    private static void config(ObjectMapper objectMapper) {objectMapper.enable(JsonGenerator.Feature.WRITE_BIGDECIMAL_AS_PLAIN);
        objectMapper.enable(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT);
        objectMapper.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
        objectMapper.enable(DeserializationFeature.FAIL_ON_READING_DUP_TREE_KEY);
        objectMapper.enable(DeserializationFeature.FAIL_ON_NUMBERS_FOR_ENUMS);
        objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
        objectMapper.disable(DeserializationFeature.FAIL_ON_NULL_FOR_PRIMITIVES);
        objectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
        objectMapper.enable(JsonParser.Feature.ALLOW_COMMENTS);
        objectMapper.disable(JsonGenerator.Feature.ESCAPE_NON_ASCII);
        objectMapper.enable(JsonGenerator.Feature.IGNORE_UNKNOWN);
        objectMapper.enable(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES);
        objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
        objectMapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
        objectMapper.enable(JsonParser.Feature.ALLOW_SINGLE_QUOTES);
        objectMapper.registerModule(new ParameterNamesModule());
        objectMapper.registerModule(new Jdk8Module());
        objectMapper.registerModule(new JavaTimeModule());
        objectMapper.registerModule(new GuavaModule());
    }
    public static void setSerializationInclusion(JsonInclude.Include inclusion) {
        DEFAULT_PROPERTY_INCLUSION = inclusion;
        configPropertyInclusion();}

    public static void setIndentOutput(boolean isEnable) {
        IS_ENABLE_INDENT_OUTPUT = isEnable;
        configIndentOutput();}

    public static <V> V from(URL url, Class<V> c) {
        try {return mapper.readValue(url, c);
        } catch (IOException e) {log.error("jackson from error, url: {}, type: {}", url.getPath(), c, e);
            return null;
        }
    }

    public static <V> V from(InputStream inputStream, Class<V> c) {
        try {return mapper.readValue(inputStream, c);
        } catch (IOException e) {log.error("jackson from error, type: {}", c, e);
            return null;
        }
    }

    public static <V> V from(File file, Class<V> c) {
        try {return mapper.readValue(file, c);
        } catch (IOException e) {log.error("jackson from error, file path: {}, type: {}", file.getPath(), c, e);
            return null;
        }
    }

    public static <V> V from(Object jsonObj, Class<V> c) {
        try {return mapper.readValue(jsonObj.toString(), c);
        } catch (IOException e) {log.error("jackson from error, json: {}, type: {}", jsonObj.toString(), c, e);
            return null;
        }
    }

    public static <V> V from(String json, Class<V> c) {
        try {return mapper.readValue(json, c);
        } catch (IOException e) {log.error("jackson from error, json: {}, type: {}", json, c, e);
            return null;
        }
    }

    public static <V> V from(URL url, TypeReference<V> type) {
        try {return mapper.readValue(url, type);
        } catch (IOException e) {log.error("jackson from error, url: {}, type: {}", url.getPath(), type, e);
            return null;
        }
    }

    public static <V> V from(InputStream inputStream, TypeReference<V> type) {
        try {return mapper.readValue(inputStream, type);
        } catch (IOException e) {log.error("jackson from error, type: {}", type, e);
            return null;
        }
    }

    public static <V> V from(File file, TypeReference<V> type) {
        try {return mapper.readValue(file, type);
        } catch (IOException e) {log.error("jackson from error, file path: {}, type: {}", file.getPath(), type, e);
            return null;
        }
    }

    public static <V> V from(Object jsonObj, TypeReference<V> type) {
        try {return mapper.readValue(jsonObj.toString(), type);
        } catch (IOException e) {log.error("jackson from error, json: {}, type: {}", jsonObj.toString(), type, e);
            return null;
        }
    }

    public static <V> V from(String json, TypeReference<V> type) {
        try {return mapper.readValue(json, type);
        } catch (IOException e) {log.error("jackson from error, json: {}, type: {}", json, type, e);
            return null;
        }
    }

    public static <V> String to(List<V> list) {
        try {return mapper.writeValueAsString(list);
        } catch (JsonProcessingException e) {log.error("jackson to error, obj: {}", list, e);
            return null;
        }
    }

    public static <V> String to(V v) {
        try {return mapper.writeValueAsString(v);
        } catch (JsonProcessingException e) {log.error("jackson to error, obj: {}", v, e);
            return null;
        }
    }

    public static <V> void toFile(String path, List<V> list) {try (Writer writer = new FileWriter(new File(path), true)) {mapper.writer().writeValues(writer).writeAll(list);
            writer.flush();} catch (Exception e) {log.error("jackson to file error, path: {}, list: {}", path, list, e);
        }
    }

    public static <V> void toFile(String path, V v) {try (Writer writer = new FileWriter(new File(path), true)) {mapper.writer().writeValues(writer).write(v);
            writer.flush();} catch (Exception e) {log.error("jackson to file error, path: {}, obj: {}", path, v, e);
        }
    }

    public static String getString(String json, String key) {if (StringUtils.isEmpty(json)) {return null;}
        try {JsonNode node = mapper.readTree(json);
            if (null != node) {return node.get(key).toString();} else {return null;}
        } catch (IOException e) {log.error("jackson get string error, json: {}, key: {}", json, key, e);
            return null;
        }
    }

    public static Integer getInt(String json, String key) {if (StringUtils.isEmpty(json)) {return null;}
        try {JsonNode node = mapper.readTree(json);
            if (null != node) {return node.get(key).intValue();} else {return null;}
        } catch (IOException e) {log.error("jackson get int error, json: {}, key: {}", json, key, e);
            return null;
        }
    }

    public static Long getLong(String json, String key) {if (StringUtils.isEmpty(json)) {return null;}
        try {JsonNode node = mapper.readTree(json);
            if (null != node) {return node.get(key).longValue();} else {return null;}
        } catch (IOException e) {log.error("jackson get long error, json: {}, key: {}", json, key, e);
            return null;
        }
    }

    public static Double getDouble(String json, String key) {if (StringUtils.isEmpty(json)) {return null;}
        try {JsonNode node = mapper.readTree(json);
            if (null != node) {return node.get(key).doubleValue();} else {return null;}
        } catch (IOException e) {log.error("jackson get double error, json: {}, key: {}", json, key, e);
            return null;
        }
    }

    public static BigInteger getBigInteger(String json, String key) {if (StringUtils.isEmpty(json)) {return new BigInteger(String.valueOf(0.00));
        }
        try {JsonNode node = mapper.readTree(json);
            if (null != node) {return node.get(key).bigIntegerValue();} else {return null;}
        } catch (IOException e) {log.error("jackson get biginteger error, json: {}, key: {}", json, key, e);
            return null;
        }
    }

    public static BigDecimal getBigDecimal(String json, String key) {if (StringUtils.isEmpty(json)) {return null;}
        try {JsonNode node = mapper.readTree(json);
            if (null != node) {return node.get(key).decimalValue();} else {return null;}
        } catch (IOException e) {log.error("jackson get bigdecimal error, json: {}, key: {}", json, key, e);
            return null;
        }
    }

    public static boolean getBoolean(String json, String key) {if (StringUtils.isEmpty(json)) {return false;}
        try {JsonNode node = mapper.readTree(json);
            if (null != node) {return node.get(key).booleanValue();} else {return false;}
        } catch (IOException e) {log.error("jackson get boolean error, json: {}, key: {}", json, key, e);
            return false;
        }
    }

    public static byte[] getByte(String json, String key) {if (StringUtils.isEmpty(json)) {return null;}
        try {JsonNode node = mapper.readTree(json);
            if (null != node) {return node.get(key).binaryValue();} else {return null;}
        } catch (IOException e) {log.error("jackson get byte error, json: {}, key: {}", json, key, e);
            return null;
        }
    }

    public static <T> ArrayList<T> getList(String json, String key) {if (StringUtils.isEmpty(json)) {return null;}
        String string = getString(json, key);
        return from(string, new TypeReference<ArrayList<T>>() {});
    }

    public static <T> String add(String json, String key, T value) {
        try {JsonNode node = mapper.readTree(json);
            add(node, key, value);
            return node.toString();} catch (IOException e) {log.error("jackson add error, json: {}, key: {}, value: {}", json, key, value, e);
            return json;
        }
    }

    private static <T> void add(JsonNode jsonNode, String key, T value) {if (value instanceof String) {((ObjectNode) jsonNode).put(key, (String) value);
        } else if (value instanceof Short) {((ObjectNode) jsonNode).put(key, (Short) value);
        } else if (value instanceof Integer) {((ObjectNode) jsonNode).put(key, (Integer) value);
        } else if (value instanceof Long) {((ObjectNode) jsonNode).put(key, (Long) value);
        } else if (value instanceof Float) {((ObjectNode) jsonNode).put(key, (Float) value);
        } else if (value instanceof Double) {((ObjectNode) jsonNode).put(key, (Double) value);
        } else if (value instanceof BigDecimal) {((ObjectNode) jsonNode).put(key, (BigDecimal) value);
        } else if (value instanceof BigInteger) {((ObjectNode) jsonNode).put(key, (BigInteger) value);
        } else if (value instanceof Boolean) {((ObjectNode) jsonNode).put(key, (Boolean) value);
        } else if (value instanceof byte[]) {((ObjectNode) jsonNode).put(key, (byte[]) value);
        } else {((ObjectNode) jsonNode).put(key, to(value));
        }
    }

    public static String remove(String json, String key) {
        try {JsonNode node = mapper.readTree(json);
            ((ObjectNode) node).remove(key);
            return node.toString();} catch (IOException e) {log.error("jackson remove error, json: {}, key: {}", json, key, e);
            return json;
        }
    }

    public static <T> String update(String json, String key, T value) {
        try {JsonNode node = mapper.readTree(json);
            ((ObjectNode) node).remove(key);
            add(node, key, value);
            return node.toString();} catch (IOException e) {log.error("jackson update error, json: {}, key: {}, value: {}", json, key, value, e);
            return json;
        }
    }

    public static String format(String json) {
        try {JsonNode node = mapper.readTree(json);
            return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(node);
        } catch (IOException e) {log.error("jackson format json error, json: {}", json, e);
            return json;
        }
    }

    public static boolean isJson(String json) {
        try {mapper.readTree(json);
            return true;
        } catch (Exception e) {log.error("jackson check json error, json: {}", json, e);
            return false;
        }
    }

    private static InputStream getResourceStream(String name) {return JsonUtil.class.getClassLoader().getResourceAsStream(name);
    }

    private static InputStreamReader getResourceReader(InputStream inputStream) {if (null == inputStream) {return null;}
        return new InputStreamReader(inputStream, StandardCharsets.UTF_8);
    }
}

• JsonResult

package cn.tedu.web.util;

import lombok.Getter;
import lombok.Setter;

@Getter
@Setter
public class JsonResult<T> {
    /** 胜利 */
    public static final int SUCCESS = 200;

    /** 没有登录 */
    public static final int NOT_LOGIN = 400;

    /** 产生异样 */
    public static final int EXCEPTION = 401;

    /** 零碎谬误 */
    public static final int SYS_ERROR = 402;

    /** 参数谬误 */
    public static final int PARAMS_ERROR = 403;

    /** 不反对或曾经废除 */
    public static final int NOT_SUPPORTED = 410;

    /** AuthCode 谬误 */
    public static final int INVALID_AUTHCODE = 444;

    /** 太频繁的调用 */
    public static final int TOO_FREQUENT = 445;

    /** 未知的谬误 */
    public static final int UNKNOWN_ERROR = 499;
    
    private int code;
    private String msg;
    private T data;
    
    

    public static JsonResult build() {return new JsonResult();
    }
    public static JsonResult build(int code) {return new JsonResult().code(code);
    }
    public static JsonResult build(int code, String msg) {return new JsonResult<String>().code(code).msg(msg);
    }
    public static <T> JsonResult<T> build(int code, T data) {return new JsonResult<T>().code(code).data(data);
    }
    public static <T> JsonResult<T> build(int code, String msg, T data) {return new JsonResult<T>().code(code).msg(msg).data(data);
    }
    
    public JsonResult<T> code(int code) {
        this.code = code;
        return this;
    }
    public JsonResult<T> msg(String msg) {
        this.msg = msg;
        return this;
    }
    public JsonResult<T> data(T data) {
        this.data = data;
        return this;
    }
    
    
    public static JsonResult ok() {return build(SUCCESS);
    }
    public static JsonResult ok(String msg) {return build(SUCCESS, msg);
    }
    public static <T> JsonResult<T> ok(T data) {return build(SUCCESS, data);
    }
    public static JsonResult err() {return build(EXCEPTION);
    }
    public static JsonResult err(String msg) {return build(EXCEPTION, msg);
    }
    
    @Override
    public String toString() {return JsonUtil.to(this);
    }
}

item service 商品服务

1. 新建我的项目
2. 配置依赖 pom.xml
3. 配置 application.yml
4. 配置主程序
5. 编写代码

新建 SpringBoot 起步我的项目

抉择依赖项

• 只抉择 web

pom.xml

• 要增加 sp01-commons 我的项目依赖

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>cn.tedu</groupId>
    <artifactId>sp02-itemservice</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>sp02-itemservice</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>cn.tedu</groupId>
            <artifactId>sp01-commons</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>

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

application.yml

spring:
  application:
    name: item-service
    
server:
  port: 8001

主程序

• 默认代码，不须要批改

package cn.tedu.sp02;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Sp02ItemserviceApplication {public static void main(String[] args) {SpringApplication.run(Sp02ItemserviceApplication.class, args);
    }

}

java 源文件

ItemServiceImpl

package cn.tedu.sp02.item.service;

import java.util.ArrayList;
import java.util.List;

import org.springframework.stereotype.Service;

import cn.tedu.sp01.pojo.Item;
import cn.tedu.sp01.service.ItemService;

import lombok.extern.slf4j.Slf4j;

@Slf4j
@Service
public class ItemServiceImpl implements ItemService {

    @Override
    public List<Item> getItems(String orderId) {ArrayList<Item> list = new ArrayList<Item>();
        list.add(new Item(1, "商品 1",1));
        list.add(new Item(2, "商品 2",2));
        list.add(new Item(3, "商品 3",3));
        list.add(new Item(4, "商品 4",4));
        list.add(new Item(5, "商品 5",5));
        return list;
    }

    @Override
    public void decreaseNumbers(List<Item> list) {for(Item item : list) {log.info("缩小库存 -"+item);
        }
    }
}

ItemController

package cn.tedu.sp02.item.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
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.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import cn.tedu.sp01.pojo.Item;
import cn.tedu.sp01.service.ItemService;
import cn.tedu.web.util.JsonResult;

import lombok.extern.slf4j.Slf4j;

@Slf4j
@RestController
public class ItemController {
    @Autowired
    private ItemService itemService;
    
    @Value("${server.port}")
    private int port;
    
    @GetMapping("/{orderId}")
    public JsonResult<List<Item>> getItems(@PathVariable String orderId) {log.info("server.port="+port+", orderId="+orderId);
        
        List<Item> items = itemService.getItems(orderId);
        return JsonResult.ok(items).msg("port="+port);
    }
    
    @PostMapping("/decreaseNumber")
    public JsonResult decreaseNumber(@RequestBody List<Item> items) {itemService.decreaseNumbers(items);
        return JsonResult.ok();}
}