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added example code for BAEL-1682

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This commit is contained in:
Seun Matt 2018-04-05 01:04:02 +01:00
parent e8c4bb6308
commit 099278bfb8
9 changed files with 130 additions and 0 deletions
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4
spring-boot/pom.xml
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@ -20,6 +20,10 @@
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId> <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency> </dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<dependency> <dependency>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId> <artifactId>spring-boot-starter-web</artifactId>

26
spring-boot/src/main/java/com/baeldung/errorhandling/ErrorHandlingApplication.java Normal file
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@ -0,0 +1,26 @@
package com.baeldung.errorhandling;
import com.baeldung.autoconfiguration.MySQLAutoconfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.servlet.handler.HandlerMappingIntrospector;
@SpringBootApplication(exclude = {MySQLAutoconfiguration.class})
@ComponentScan(basePackages = "com.baeldung.errorhandling")
public class ErrorHandlingApplication {
public static void main(String [] args) {
System.setProperty("spring.profiles.active", "errorhandling");
SpringApplication.run(ErrorHandlingApplication.class, args);
}
@Bean(name = "mvcHandlerMappingIntrospector")
public HandlerMappingIntrospector mvcHandlerMappingIntrospector(ApplicationContext context) {
return new HandlerMappingIntrospector(context);
}
}

26
spring-boot/src/main/java/com/baeldung/errorhandling/controllers/IndexController.java Normal file
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@ -0,0 +1,26 @@
package com.baeldung.errorhandling.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
@Controller
public class IndexController {
@GetMapping(value = {"/", ""})
public String index() {
return "index";
}
@GetMapping(value = {"/server_error"})
public String triggerServerError() {
"ser".charAt(30);
return "index";
}
@PostMapping(value = {"/general_error"})
public String triggerGeneralError() {
return "index";
}
}

38
spring-boot/src/main/java/com/baeldung/errorhandling/controllers/MyErrorController.java Normal file
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@ -0,0 +1,38 @@
package com.baeldung.errorhandling.controllers;
import org.springframework.boot.autoconfigure.web.ErrorController;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.RequestDispatcher;
import javax.servlet.http.HttpServletRequest;
@Controller
public class MyErrorController implements ErrorController {
public MyErrorController() {}
@RequestMapping(value = "/error")
public String handleError(HttpServletRequest request) {
Integer statusCode =
Integer.valueOf(request.getAttribute(RequestDispatcher.ERROR_STATUS_CODE).toString());
if(statusCode == HttpStatus.NOT_FOUND.value()) {
return "error-404";
}
else if(statusCode == HttpStatus.INTERNAL_SERVER_ERROR.value()) {
return "error-500";
}
else {
return "error";
}
}
@Override
public String getErrorPath() {
return "/error";
}
}

9
spring-boot/src/main/resources/application-errorhandling.properties Normal file
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@ -0,0 +1,9 @@
#server
server.port=9000
server.servlet-path=/
server.context-path=/
#server.error.whitelabel.enabled=false
#spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration
#freemarker
spring.freemarker.suffix=.ftl

7
spring-boot/src/main/resources/templates/error-404.ftl Normal file
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@ -0,0 +1,7 @@
<!DOCTYPE html>
<html>
<body>
<h1>Sorry we couldn't find the resource you are looking for</h1>
<a href="/">Go Home</a>
</body>
</html>

7
spring-boot/src/main/resources/templates/error-500.ftl Normal file
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@ -0,0 +1,7 @@
<!DOCTYPE html>
<html>
<body>
<h1>Oops! We spilled something but we're fixing it</h1>
<a href="/">Go Home</a>
</body>
</html>

7
spring-boot/src/main/resources/templates/error.ftl Normal file
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@ -0,0 +1,7 @@
<!DOCTYPE html>
<html>
<body>
<h1>Something went wrong! Our Engineers are on it</h1>
<a href="/">Go Home</a>
</body>
</html>

6
spring-boot/src/main/resources/templates/index.ftl Normal file
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@ -0,0 +1,6 @@
<!DOCTYPE html>
<html>
<body>
<h1>Welcome Home</h1>
</body>
</html>