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212 lines
10 KiB
212 lines
10 KiB
# 新增接口
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以story服务为例，新增一个获取故事内容接口
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- 在controller下新建一个类，StoryDemoController.java
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- 加上`@RestController`注解
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```java
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@RestController
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public class StoryDemoController {
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}
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```
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- 新增一个接口
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```java
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@ApiMapping(value = "story.demo.get")
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public Story getStory() {
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Story story = new Story();
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story.setId(1);
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story.setName("白雪公主");
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return story;
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}
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```
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这里的`@ApiMapping`注解作用同`@RequestMapping`注解，可以理解为是它的扩展
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value就是接口名，对应客户端的`method`参数
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如果要加上版本号，指定`version`参数：`@ApiMapping(value = "story.demo.get", version = "2.0")`
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- 重启story服务，这样接口就可以使用了。
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## 绑定业务参数
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网关校验通过后，请求参数会传递到微服务上来，完整的参数如下所示：
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```
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请求参数：charset=utf-8&biz_content={"goods_remark":"iphone6"}&method=goods.add&format=json&app_id=2019032617262200001&sign_type=RSA2&version=1.0×tamp=2019-04-29 19:18:38
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```
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其中biz_content部分是我们想要的，在方法上申明一个对象，对应biz_content中的内容即可完成参数绑定，并且对参数进行JSR-303校验。
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```java
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@ApiMapping(value = "goods.add")
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public Object addGoods(GoodsParam param) {
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return param;
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}
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@Data
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public class GoodsParam {
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@NotEmpty(message = "不能为空") // 支持JSR-303校验
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private String goods_remark;
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}
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```
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一般情况下，只需要获取业务参数即可，如果想要获取更多的参数，可在后面跟一个`HttpServletRequest`对象。
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```java
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@ApiMapping(value = "goods.add")
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public Object addGoods(GoodsParam param, HttpServletRequest request) {
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System.out.println(request.getParameter("method"));
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return param;
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}
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```
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- 方式2
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```java
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@ApiMapping(value = "story.get", version = "2.2")
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public Story getStory22(OpenContext<Story> openContext) {
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// 业务参数
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Story bizObject = openContext.getBizObject();
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// 获取appid，更多方法查看OpenContext类
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String appId = openContext.getAppId();
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System.out.println(appId);
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return bizObject;
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}
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```
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另一种方式，OpenContext泛型参数填bizObject类，调用openContext.getBizObject()可直接获得对象
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此方式等价于：
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```java
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@ApiMapping(value = "story.get", version = "2.2")
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public Story getStory22(Story bizObject) {
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OpenContext openContext = ServiceContext.getCurrentContext().getOpenContext();
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String appId = openContext.getAppId();
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System.out.println(appId);
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return bizObject;
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}
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```
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## 接口命名
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接口命名没有做强制要求，但我们还是推荐按照下面的方式进行命名：
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接口名的命名规则为：`服务模块.业务模块.功能模块.行为`，如：
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- mini.user.userinfo.get 小程序服务.用户模块.用户信息.获取
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- member.register.total.get 会员服务.注册模块.注册总数.获取
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如果觉得命名规则有点长可以精简为：`服务模块.功能模块.行为`，如`member.usercount.get`，前提是确保前缀要有所区分，不和其它服务冲突。
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## 测试接口
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- 在sop-test工程下新建一个测试用例，`StoryDemoTest`，继承TestBase
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```java
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public class StoryDemoTest extends TestBase {
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String url = "http://localhost:8081/api"; // zuul
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String appId = "2019032617262200001";
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// 私钥
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String privateKey = "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";
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@Test
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public void testDemo() throws Exception {
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// 公共请求参数
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Map<String, String> params = new HashMap<String, String>();
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params.put("app_id", appId);
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// 这里对应@ApiMapping.value属性
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params.put("method", "story.demo.get");
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params.put("format", "json");
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params.put("charset", "utf-8");
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params.put("sign_type", "RSA2");
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params.put("timestamp", new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));
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// 这里对应@ApiMapping.version属性
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params.put("version", "1.0");
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// 业务参数
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Map<String, String> bizContent = new HashMap<>();
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params.put("biz_content", JSON.toJSONString(bizContent));
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System.out.println("----------- 请求信息 -----------");
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System.out.println("请求参数：" + buildParamQuery(params));
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System.out.println("商户秘钥：" + privateKey);
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String content = AlipaySignature.getSignContent(params);
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System.out.println("待签名内容：" + content);
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String sign = AlipaySignature.rsa256Sign(content, privateKey, "utf-8");
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System.out.println("签名(sign)：" + sign);
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params.put("sign", sign);
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System.out.println("----------- 返回结果 -----------");
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String responseData = post(url, params);// 发送请求
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System.out.println(responseData);
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}
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}
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```
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- 请求成功后，控制台会打印：
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```
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----------- 请求信息 -----------
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请求参数：charset=utf-8&biz_content={}&method=story.demo.get&format=json&app_id=alipay_test&sign_type=RSA2&version=1.0×tamp=2019-03-23 15:41:22
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商户秘钥：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待签名内容：app_id=alipay_test&biz_content={}&charset=utf-8&format=json&method=story.demo.get&sign_type=RSA2×tamp=2019-03-23 15:41:22&version=1.0
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签名(sign)：YMbxTPdovi6htcn1K3USTS6/Tbg6MOAMigG6x/kG0kQFCYH8ljvxXzcY86UT056nUG3OXxnj0xkw07eV6E03HMlu7bn3/jrT3PCcV3YguhA92aWz720x2xJWdfXY13OUPS9VOCC9zIVxu6EBD+PoZ7ojYChYvOfCR5I8bR/oOc0ZLjK63PWTBdf0eFS4sybXzRf81uNLMROsMhmBDDy0Fhml3ml77qzWBIpsmq5ECZ+89rMPbkNhAUcnFAe7ik7xZIL6WcUhAOhKVa8ZQK1GMjoGnAbGRed1FbuOHZGubgffg4/vMqrY10Bcy6h9jt/zK5w9L3HVgK3aPgQlfP16Gg==
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----------- 返回结果 -----------
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{"story_demo_get_response":{"msg":"Success","code":"10000","name":"白雪公主","id":1},"sign":"YMbxTPdovi6htcn1K3USTS6/Tbg6MOAMigG6x/kG0kQFCYH8ljvxXzcY86UT056nUG3OXxnj0xkw07eV6E03HMlu7bn3/jrT3PCcV3YguhA92aWz720x2xJWdfXY13OUPS9VOCC9zIVxu6EBD+PoZ7ojYChYvOfCR5I8bR/oOc0ZLjK63PWTBdf0eFS4sybXzRf81uNLMROsMhmBDDy0Fhml3ml77qzWBIpsmq5ECZ+89rMPbkNhAUcnFAe7ik7xZIL6WcUhAOhKVa8ZQK1GMjoGnAbGRed1FbuOHZGubgffg4/vMqrY10Bcy6h9jt/zK5w9L3HVgK3aPgQlfP16Gg=="}
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```
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## 开放现有接口
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如果想把现有项目中的接口开放出去，提供给客户调用，具体操作如下：
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- 将现有项目接入到SOP，前往`项目接入到SOP`文档页查看
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- 在现有接口方法上加上一个注解`@ApiAbility`，如下面这个接口
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```java
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// 具备开放平台能力
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@ApiAbility
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@RequestMapping("getStory2")
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public Story getStory2_0() {
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Story story = new Story();
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story.setId(1);
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story.setName("海底小纵队(默认版本号)");
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return story;
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}
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```
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- 启动程序
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这种情况下，老接口依然能正常访问，同时开放平台也能访问进来。
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**注意** 此时的开放接口对应的接口名为：类@RequestMapping.value + "." + 方法@RequestMapping.value
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举个列子：
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```java
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@RequestMapping("goods")
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public class MyController {
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@ApiAbility
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@RequestMapping("listGoods")
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public Object fun() {
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}
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}
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```
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fun接口对应的路径为：`/goods/listGoods`
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那么对应开放平台的接口名会转换成：`goods.listGoods`，客户端的method参数要填`goods.listGoods`
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当然也可以直接把@RequestMapping替换成`@ApiMapping`并指定接口名，这样的话不能兼容以前的访问形式。
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