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package com.dsideal.FengHuang.Swagger.controller;
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import com.dsideal.FengHuang.Swagger.annotation.Api;
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import com.dsideal.FengHuang.Swagger.annotation.Item;
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import com.dsideal.FengHuang.Swagger.annotation.ActionApi;
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import com.dsideal.FengHuang.Swagger.annotation.Param;
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import com.dsideal.FengHuang.Swagger.annotation.Params;
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import com.dsideal.FengHuang.Swagger.annotation.Responses;
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import com.dsideal.FengHuang.Swagger.annotation.SecurityApi;
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import com.dsideal.FengHuang.Swagger.config.SwaggerConfig;
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import com.dsideal.FengHuang.Swagger.enums.InType;
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import com.jfinal.core.Action;
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import com.jfinal.core.Controller;
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import com.jfinal.core.JFinal;
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import com.jfinal.kit.Kv;
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import com.jfinal.kit.Okv;
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import java.lang.reflect.Method;
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import java.util.*;
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import static java.util.Comparator.*;
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/**
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* Swagger UI Controller
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*/
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public class SwaggerController extends Controller {
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// 请求方法
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private static final String HTTP_METHOD = "get,post,head,put,delete";
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/**
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* api页面
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*/
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//@IsLoginInterface({})
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public void index() {
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String theme = getPara(0);
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if (theme == null) {
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theme = "layui";
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} else {
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theme = theme.trim();
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}
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switch (theme) {
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case "default":
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render("_default/index.html");
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break;
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default:
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render("layui/index.html");
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break;
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}
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}
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/**
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* 获取所有api接口
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*/
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public void api() {
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// 所有接口类tag描述信息
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List<Kv> tags = new ArrayList<>();
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// 所有接口路径
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Map<String, Map<String, Kv>> paths = new LinkedHashMap<>();
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// 扫描所有API类Action注解
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Map<Class<? extends Controller>, List<Action>> classMap = scanAllApiAction();
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classMap.keySet().forEach(clazz -> {
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List<Action> actions = classMap.get(clazz);
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actions.forEach(action -> {
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Method method = action.getMethod();
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ActionApi ApiAction = method.getAnnotation(ActionApi.class);
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String httpMethod = ApiAction.httpMethod();
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if (httpMethod == null || "".equals(httpMethod.trim())) {
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// 请求方法：HEAD：请求页面的首部、GET：查看, POST：创建, PUT：更新, DELETE：删除
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httpMethod = HTTP_METHOD;
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}
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Map<String, Kv> methodApiMap = new HashMap<>();
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String[] httpMethods = httpMethod.split(",");// 支持多个请求方法
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for (String methodItem : httpMethods) {
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methodItem = methodItem.trim().toLowerCase();
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if (!Arrays.asList(HTTP_METHOD.split(",")).contains(methodItem)) {
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continue;
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}
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// 获取参数注解信息
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List<Param> params = new ArrayList<>();
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if (method.isAnnotationPresent(Params.class)) {
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params.addAll(Arrays.asList(method.getAnnotation(Params.class).value()));
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}
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if (method.isAnnotationPresent(Param.class)) {
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// Java8新特性：支持多注解
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Param[] paramArray = method.getAnnotationsByType(Param.class);
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params.addAll(Arrays.asList(paramArray));
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}
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// 构建参数列表(包含全局参数)
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List<Kv> paramList = new ArrayList<>(SwaggerConfig.getGlobalParamList());
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params.forEach(i -> {
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// 注意：swaggerUI 使用Java的关键字default作为默认值,此处将defaultValue转换为default
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Kv kv = Kv.by("name", i.name()).set("description", i.remark()).set("required", i.required())
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.set("type", i.dataType()).set("format", i.format()).set("default", i.defaultValue());
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if ("file".equals(i.dataType())) {
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kv.set("in", InType.FORM_DATA.getValue());
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} else {
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kv.set("in", i.in().getValue());
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}
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kv.set("schema", i.schema());//
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kv.set("items", "");//{type:"string",enum:["a","b","c"],default:""}
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kv.set("collectionFormat", i.collectionFormat());
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paramList.add(kv);
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});
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// 每个action注解信息
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Kv actionKv = Kv.by("parameters", paramList)
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.set("operationId", method.getName())
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.set("tags", toSet(notBlank(ApiAction.tag()) ? ApiAction.tag() : actions.get(0).getActionKey()))
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.set("description", ApiAction.remark())
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.set("summary", ApiAction.summary())
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.set("consumes", toSet("application/json" + "," + ApiAction.consumes()))
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.set("produces", toSet(ApiAction.consumes() + "," + "application/json"));
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// response
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Kv responseKv = Kv.by("200", Kv.by("description", "Success"))
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.set("400", Kv.by("description", "Invalid ID supplied"))
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.set("403", Kv.by("description", "Forbiden"))
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.set("404", Kv.by("description", "Not found"))
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.set("405", Kv.by("description", "Validation exception"))
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.set("500", Kv.by("description", "Interneral error"));
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if (method.isAnnotationPresent(Responses.class)) {
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Responses response = method.getAnnotation(Responses.class);
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responseKv.set(response.key(), Kv.by("description", response.remark()));
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Kv itemKv = Kv.create();
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for (Item i : response.schemaItems()) {
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itemKv.set(i.key(), i.value());
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}
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responseKv.set("schema", Kv.by("type", response.schemaType()).set("items", itemKv));
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actionKv.set("responses", responseKv);
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}
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// security
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if (method.isAnnotationPresent(SecurityApi.class)) {
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// Java8新特性：支持多注解
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SecurityApi[] securityApis = method.getAnnotationsByType(SecurityApi.class);
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List<Kv> securitys = new ArrayList<>();
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for (SecurityApi item : securityApis) {
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Kv security = Kv.by(item.key(), toSet(item.value()));
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securitys.add(security);
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}
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actionKv.set("security", securitys);
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}
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methodApiMap.put(methodItem, actionKv);
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}
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paths.put(notBlank(ApiAction.url()) ? ApiAction.url() : action.getActionKey(), methodApiMap);
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});
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Api api = clazz.getAnnotation(Api.class);
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Kv tag = Kv.by("name", actions.get(0).getActionKey()).set("description", api.remark() + " (" + clazz.getSimpleName() + ")");
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//Kv tag = Kv.by("name", api.remark()).set("description", api.remark() + " (" + clazz.getSimpleName() + ")");
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if (notBlank(api.outerUrl()) || notBlank(api.outerRemark())) {
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tag.set("externalDocs", Kv.by("description", api.outerRemark()).set("url", api.outerUrl()));
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}
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tags.add(tag);
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});
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// 获取host
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String host = getRequest().getServerName();
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if (this.getRequest().getServerPort() != 80) {
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host += ":" + getRequest().getServerPort();
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}
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Okv allApi = Okv.by("Swagger", "2.0")
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.set("info", SwaggerConfig.getApiInfo())
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.set("host", host)
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.set("basePath", "")
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.set("tags", tags)
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.set("schemes", SwaggerConfig.getScheme())// 传输协议Scheme：HTTP、HTTPS
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.set("paths", paths)
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.set("securityDefinitions", SwaggerConfig.getSecurityDefinition())
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.set("definitions", SwaggerConfig.getDefinition())
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.set("externalDocs", SwaggerConfig.getExternalDocs());
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renderJson(allApi);
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}
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/**
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* 扫描所有API类Action注解
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*
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* @return
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*/
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private static Map<Class<? extends Controller>, List<Action>> scanAllApiAction() {
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Map<Class<? extends Controller>, List<Action>> apiMap = new HashMap<>();
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// 获取遍历所有action
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JFinal.me().getAllActionKeys().forEach(actionKey -> {
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Action action = JFinal.me().getAction(actionKey, new String[1]);
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Class<? extends Controller> controller = action.getControllerClass();
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if (apiMap.containsKey(controller)) {
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if (action.getMethod().isAnnotationPresent(ActionApi.class)) {
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List<Action> actions = apiMap.get(controller);
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if (!actions.contains(action)) {
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actions.add(action);
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apiMap.put(controller, actions);
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}
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}
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} else {
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if (controller.isAnnotationPresent(Api.class)) {
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if (action.getMethod().isAnnotationPresent(ActionApi.class)) {
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List<Action> actions = new ArrayList<>();
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actions.add(action);
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apiMap.put(controller, actions);
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}
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}
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}
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});
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List<Class<? extends Controller>> list = new ArrayList<>(apiMap.keySet());
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list.sort(comparingInt((Class<? extends Controller> clazz) -> clazz.getAnnotation(Api.class).sort()));
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Map<Class<? extends Controller>, List<Action>> result = new LinkedHashMap<>();
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for (Class<? extends Controller> i : list) {
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List<Action> actions = apiMap.get(i);
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actions.sort(comparingInt((Action action) -> action.getMethod().getAnnotation(ActionApi.class).sort()));
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result.put(i, actions);
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}
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return result;
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}
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/**
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* 字符串转set集合
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*
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* @param value
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* @return
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*/
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private static Set<String> toSet(String value) {
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Set<String> result = new LinkedHashSet<>();
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if (value != null) {
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String[] values = value.split(",");
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for (String item : values) {
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if (notBlank(item)) {
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result.add(item.trim());
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}
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}
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}
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return result;
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}
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/**
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* 判断字符串非空
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*
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* @param value
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* @return
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*/
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private static boolean notBlank(String value) {
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return value != null && !"".equals(value.trim());
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}
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}
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