add springmvc demo

Author: xlorne

springboot-example/src/main/java/com/codingapi/springboot/example/controller/OpenController.java

@@ -25,7 +25,7 @@ public class Demo  {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private int id;
+    private Integer id;
 
     private String name;
 

springboot-example/src/main/java/com/codingapi/springboot/example/domain/Demo.java

@@ -0,0 +1,27 @@
+package com.codingapi.springboot.example.mapping;
+
+import com.codingapi.springboot.example.domain.Demo;
+import com.codingapi.springboot.example.repository.DemoRepository;
+import lombok.AllArgsConstructor;
+import org.springframework.data.domain.Example;
+import org.springframework.stereotype.Component;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import java.util.List;
+
+@Component
+@AllArgsConstructor
+public class DemoApi {
+
+    private final DemoRepository demoRepository;
+
+
+    @ResponseBody
+    public List<Demo> findByName(@RequestParam("name") String name){
+        Demo demo = new Demo();
+        demo.setName(name);
+        Example.of(demo);
+        return demoRepository.findAll();
+    }
+}

springboot-example/src/main/java/com/codingapi/springboot/example/mapping/DemoApi.java

@@ -0,0 +1,33 @@
+package com.codingapi.springboot.example.mapping;
+
+import lombok.AllArgsConstructor;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Component;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.servlet.mvc.method.RequestMappingInfo;
+import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
+import org.springframework.web.util.pattern.PathPatternParser;
+
+import java.lang.reflect.Method;
+
+@Component
+@AllArgsConstructor
+public class EndpointMapping {
+
+    private final RequestMappingHandlerMapping handlerMapping;
+
+    public void addGetMapping(String url, Object handler, Method method){
+
+        RequestMappingInfo.BuilderConfiguration options = new RequestMappingInfo.BuilderConfiguration();
+        options.setPatternParser(new PathPatternParser());
+
+        RequestMappingInfo mappingInfo = RequestMappingInfo
+                .paths(url)
+                .methods(RequestMethod.GET)
+                .produces(MediaType.APPLICATION_JSON_VALUE)
+                .options(options)
+                .build();
+
+        handlerMapping.registerMapping(mappingInfo,handler,method);
+    }
+}

springboot-example/src/main/java/com/codingapi/springboot/example/mapping/EndpointMapping.java

@@ -0,0 +1,25 @@
+package com.codingapi.springboot.example.mapping;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class OpenApiConfiguration {
+
+    public static class BeanInit{
+
+        public BeanInit(EndpointMapping endpointMapping, DemoApi demoApi) {
+            try {
+                endpointMapping.addGetMapping("/open/demo/findByName",demoApi,DemoApi.class.getMethod("findByName", String.class));
+            } catch (NoSuchMethodException e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+
+    @Bean
+    public BeanInit beanInit(EndpointMapping endpointMapping, DemoApi demoApi){
+        return new BeanInit(endpointMapping, demoApi);
+    }
+
+}

springboot-example/src/main/java/com/codingapi/springboot/example/mapping/OpenApiConfiguration.java

@@ -1,7 +1,12 @@
 package com.codingapi.springboot.example.repository;
 
 import com.codingapi.springboot.example.domain.Demo;
+import org.springframework.data.domain.Example;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import java.util.List;
 
 /**
  * @author lorne
@@ -10,4 +15,11 @@
 public interface DemoRepository extends JpaRepository<Demo,Integer> {
 
 
+    @ResponseBody
+    default List<Demo> test(@RequestParam("name") String name){
+        Demo demo = new Demo();
+        demo.setName(name);
+        return findAll(Example.of(demo));
+    }
+
 }

springboot-example/src/main/java/com/codingapi/springboot/example/repository/DemoRepository.java

@@ -16,7 +16,7 @@ public class ServletExceptionHandler implements HandlerExceptionResolver {
 
     @Override
     public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
-        log.warn("controller exception:{}",ex.getLocalizedMessage());
+        log.warn("controller exception:{}",ex.getLocalizedMessage(),ex);
 
         MappingJackson2JsonView view = new MappingJackson2JsonView();
         ModelAndView mv = new ModelAndView(view);