今天完成的事情：听老大讲解复盘项目，学习jersey。

老大详细讲解了金融产品需要了解的一些金融概念，以及金融产品的风险。讲的打款时出现的问题，以及日息的计算都是我之前没有详细考虑的。

学习了一下jersey

Jersey是JAX-RS（JSR311）开源参考实现用于构建RESTful Web service，它包含三个部分：

　　核心服务器（Core Server） 通过提供JSR 311中标准化的注释和API标准化，可以用直观的方式开发RESTful Web服务。

　　核心客户端（Core Client） Jersey客户端API能够帮助开发者与RESTful服务轻松通信；

　　集成（Integration） Jersey还提供可以轻松继承Spring、Guice、Apache Abdera的库

代码实战

项目结构

pom文件

<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/maven-v4_0_0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId>com.airkisser</groupId>
<artifactId>simple-service</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>simple-service</name>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.glassfish.jersey</groupId>
            <artifactId>jersey-bom</artifactId>
            <version>${jersey.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-grizzly2-http</artifactId>
    </dependency>
    <!-- uncomment this to get JSON support:
     <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-moxy</artifactId>
    </dependency>
    -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.9</version>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.5.1</version>
            <inherited>true</inherited>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>exec-maven-plugin</artifactId>
            <version>1.2.1</version>
            <executions>
                <execution>
                    <goals>
                        <goal>java</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <mainClass>com.airkisser.Main</mainClass>
            </configuration>
        </plugin>
    </plugins>
</build>

<properties>
    <jersey.version>2.9</jersey.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>

main.java程序如入口

package com.airkisser;

import org.glassfish.grizzly.http.server.HttpServer;
import org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory;
import org.glassfish.jersey.server.ResourceConfig;
import java.io.IOException;
import java.net.URI;

public class Main {
    // Base URI the Grizzly HTTP server will listen on
    public static final String BASE_URI = "http://localhost:8080/simple-service/";

    /**
     * Starts Grizzly HTTP server exposing JAX-RS resources defined in this application.
     * @return Grizzly HTTP server.
     */
    public static HttpServer startServer() {
        // 配置扫描包
        final ResourceConfig rc = new ResourceConfig().packages("com.airkisser.api");

        // create and start a new instance of grizzly http server
        // exposing the Jersey application at BASE_URI
        return GrizzlyHttpServerFactory.createHttpServer(URI.create(BASE_URI), rc);
    }

    /**
     * Main method.
     * @param args
     * @throws IOException
     */
    public static void main(String[] args) throws IOException {
        final HttpServer server = startServer();
        System.out.println(String.format("Jersey app started with WADL available at "
                + "%sapplication.wadl\nHit enter to stop it...", BASE_URI));
        System.in.read();
        server.shutdownNow();
    }
}

DeviceResource.java（资源）

package com.airkisser.api;

import com.airkisser.dao.DeviceDao;
import com.airkisser.entity.Device;

import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;

@Path("device")
public class DeviceResource {

    private final DeviceDao deviceDao;

    // 注入Dao
    public DeviceResource() {
        this.deviceDao = new DeviceDao();
    }

    @GET
    @Produces({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML})
    public Device get(@QueryParam("ip") final String deviceIp){
        Device result = null;
        if(deviceIp != null){
            result = deviceDao.getDevice(deviceIp);
        }
        return result;
    }

    @PUT
    @Produces({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML})
    public Device put(final Device device){
        Device result = null;
        if(device != null) {
            result = deviceDao.updateDevice(device);
        }
        return result;
    }

}

DeviceDao.java

package com.airkisser.dao;

import com.airkisser.entity.Device;

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

public class DeviceDao {

    private ConcurrentMap<String, Device> fakeDB = new ConcurrentHashMap<>();

    public DeviceDao() {
        fakeDB.put("10.11.58.163", new Device("10.11.58.163"));
        fakeDB.put("10.11.58.185", new Device("10.11.58.185"));
    }

    public Device getDevice(String deviceIp) {
        return fakeDB.get(deviceIp);
    }

    public Device updateDevice(Device device) {
        String ip = device.getDeviceIp();
        if (ip != null && fakeDB.containsKey(ip)) {
            fakeDB.put(ip, device);
        }
        return fakeDB.get(ip);
    }

}

Device.java

package com.airkisser.entity;

import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "device")
public class Device {

    private String deviceIp;

    private int deviceStatus;

    public Device() {
    }

    public Device(String deviceIp) {
        this.deviceIp = deviceIp;
    }

    // @XmlAttribute只能注解在get方法上，不能直接注解到属性上
    @XmlAttribute
    public String getDeviceIp() {
        return deviceIp;
    }

    public void setDeviceIp(String deviceIp) {
        this.deviceIp = deviceIp;
    }

    @XmlAttribute
    public int getDeviceStatus() {
        return deviceStatus;
    }

    public void setDeviceStatus(int deviceStatus) {
        this.deviceStatus = deviceStatus;
    }
}

明天计划的事情：改方案，讲小课堂

遇到的问题：等PM确定资金流向

收获：学习Jersey，金融产品注意事项