springboot啟動後controller訪問404
阿新 • • 發佈:2018-10-15
nba 掃描 cat resp rop index start 可能 .repo
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<!-- 這裏是我本人的springboot啟動類位置,請根據自己的情況改動,idea下面可以點出來的-->
<start-class>com.example.DemoApplication</start-class>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
<mainClass>${start-class}</mainClass>
</configuration>
</plugin>
</plugins>
</build>
首先需要在springboot的啟動類上面使用@SpringBootApplication註解,並且指定掃描的包的位置,如下:
package com.example;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication(scanBasePackages="com.example.controller")
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
這裏如過需要掃描多個包可以這麽寫scanBasePackages={"com.xxx","com.xxx"}這種形式即可
2.其次在當前的pom.xml中指定springboot啟動類:
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<!-- 這裏是我本人的springboot啟動類位置,請根據自己的情況改動,idea下面可以點出來的-->
<start-class>com.example.DemoApplication</start-class>
</properties>
<build>
<plugins>
<plugin>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
<mainClass>${start-class}</mainClass>
</configuration>
</plugin>
</plugins>
</build>
3.這裏是我的controller:
package com.example.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
@RequestMapping("/home")
public class TestController {
@RequestMapping("/hello")
@ResponseBody
public String index(){
return "hello world";
}
}
註意:以上的springboot版本是2.0.5.RELEASE版,不同版本可能會有所不同。
springboot啟動後瀏覽器輸入下面的URL即可
http://localhost:8080/home/hello
springboot啟動後controller訪問404