关于idea请求到webapp的jsp页面出现404的问题

分手后的思念是犯贱 2022-04-13 03:13 408阅读 0赞

我们使用idea做web程序的时候，根据maven结构特点需要在main目录下建一个webapp目录，然后在这个webapp目录下建立一个个jsp页面，如下：

![20181126220255736.png][]

然后添加所需要的依赖：

<dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-tomcat</artifactId>
                <scope>provided</scope>
            </dependency>
    
            <dependency>
                <groupId>org.apache.tomcat.embed</groupId>
                <artifactId>tomcat-embed-jasper</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
            </dependency>
            
    
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
            </dependency>
            
    
            
            <dependency>
                <groupId>javax.servlet.jsp</groupId>
                <artifactId>javax.servlet.jsp-api</artifactId>
                <version>2.3.1</version>
            </dependency>

最好在<build></build>标签里添加如下<resources></resources>标签：

<resources>
    	<resource>
    		<directory>src/main/java</directory>
    		<includes>
    			<include>**/*.xml</include>
    		</includes>
    	</resource>
    	<resource>
    		<directory>src/main/resources</directory>
    		<includes>
    			<include>**/*.*</include>
    		</includes>
    	</resource>
    	<resource>
    		<directory>src/main/webapp</directory>
    		<targetPath>META-INF/resources</targetPath>
    		<includes>
    			<include>**/*.*</include>
    		</includes>
    </resource>

然后正常的在controller中写跳转到jsp页面，却发现如下所示错误：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JveV9jaGVuOTM_size_16_color_FFFFFF_t_70][]

这个错误在idea中很常见，主要是有个配置没配好导致的，只要如下配置一下就好了：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JveV9jaGVuOTM_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JveV9jaGVuOTM_size_16_color_FFFFFF_t_70 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JveV9jaGVuOTM_size_16_color_FFFFFF_t_70 3][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JveV9jaGVuOTM_size_16_color_FFFFFF_t_70 4][]

或者这样也可以：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JveV9jaGVuOTM_size_16_color_FFFFFF_t_70 5][]

这里找到你的module的正确路径。然后再启动，访问。就ok了。。。

[20181126220255736.png]: /images/20220413/500109c39d2345f49643fc60ba08dcdb.png
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JveV9jaGVuOTM_size_16_color_FFFFFF_t_70 1]: /images/20220413/14c3e40611454e84b13377dcd4fe2f8a.png
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JveV9jaGVuOTM_size_16_color_FFFFFF_t_70 5]: /images/20220413/1cbc8a472d0143c1b50748bdbbcebac6.png