BAEL-3085 Using a slash character in Spring URLs (#7823)

* slashes in Spring URLs

* cleanup

* restored format of pom

* using more descriptive names

* using more descriptive names

* slash in urls code moved to spring-mvc-simple-2 module

spring-mvc-simple-2/pom.xml

@@ -18,6 +18,11 @@
             <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>
+        </dependency>
     </dependencies>
 
     <properties>

spring-mvc-simple-2/src/main/java/com/baeldung/spring/slash/Application.java

@@ -0,0 +1,14 @@
+package com.baeldung.spring.slash;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@SpringBootApplication
+public class Application implements WebMvcConfigurer {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}

spring-mvc-simple-2/src/main/java/com/baeldung/spring/slash/SlashParsingController.java

@@ -0,0 +1,31 @@
+package com.baeldung.spring.slash;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("slash")
+public class SlashParsingController {
+
+    @GetMapping("mypaths/{anything}")
+    public String pathVariable(@PathVariable("anything") String anything) {
+        return anything;
+    }
+
+    @GetMapping("all/**")
+    public String allDirectories(HttpServletRequest request) {
+        return request.getRequestURI()
+            .split(request.getContextPath() + "/all/")[1];
+    }
+
+    @GetMapping("all")
+    public String queryParameter(@RequestParam("param") String param) {
+        return param;
+    }
+
+}

spring-mvc-simple-2/src/test/java/com/baeldung/spring/slash/SlashParsingControllerIntTest.java

@@ -0,0 +1,87 @@
+package com.baeldung.spring.slash;
+
+import static org.junit.Assert.assertEquals;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import java.net.URI;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.MvcResult;
+
+@AutoConfigureMockMvc
+@ExtendWith(SpringExtension.class)
+@SpringBootTest
+public class SlashParsingControllerIntTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    public void whenUsingPathVariablemWithoutSlashes_thenStatusOk() throws Exception {
+        final String stringWithoutSlashes = "noslash";
+
+        MvcResult mvcResult = mockMvc.perform(get("/slash/mypaths/" + stringWithoutSlashes))
+            .andExpect(status().isOk())
+            .andReturn();
+
+        assertEquals(stringWithoutSlashes, mvcResult.getResponse()
+            .getContentAsString());
+    }
+
+    @Test
+    public void whenUsingPathVariableWithSlashes_thenStatusNotFound() throws Exception {
+        final String stringWithSlashes = "url/with/slashes";
+
+        mockMvc.perform(get("/slash/mypaths/" + stringWithSlashes))
+            .andExpect(status().isNotFound());
+    }
+
+    @Test
+    public void givenAllFallbackEndpoint_whenUsingPathWithSlashes_thenStatusOk() throws Exception {
+        final String stringWithSlashes = "url/for/testing/purposes";
+
+        MvcResult mvcResult = mockMvc.perform(get("/slash/all/" + stringWithSlashes))
+            .andExpect(status().isOk())
+            .andReturn();
+
+        assertEquals(stringWithSlashes, mvcResult.getResponse()
+            .getContentAsString());
+    }
+
+    @Test
+    public void givenAllFallbackEndpoint_whenUsingConsecutiveSlashes_thenPathNormalized() throws Exception {
+        final String stringWithSlashes = "http://myurl.com";
+
+        MvcResult mvcResult = mockMvc.perform(get("/slash/all/" + stringWithSlashes))
+            .andExpect(status().isOk())
+            .andReturn();
+
+        String stringWithSlashesNormalized = URI.create("/slash/all/" + stringWithSlashes)
+            .normalize()
+            .toString()
+            .split("/slash/all/")[1];
+
+        assertEquals(stringWithSlashesNormalized, mvcResult.getResponse()
+            .getContentAsString());
+    }
+
+    @Test
+    public void whenUsingSlashesInQueryParam_thenParameterAccepted() throws Exception {
+        final String stringWithSlashes = "url/for////testing/purposes";
+
+        MvcResult mvcResult = mockMvc.perform(get("/slash/all").param("param", stringWithSlashes))
+            .andExpect(status().isOk())
+            .andReturn();
+
+        assertEquals(stringWithSlashes, mvcResult.getResponse()
+            .getContentAsString());
+    }
+
+}