Spring + Hibernate-获取404例外 [英] Spring+Hibernate- Getting 404 exception
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问题描述
我是Spring和Hibernate的新手，我想用这些技术创建Restful Web服务。
I am new to Spring and Hibernate and I would like to create Restful Web services using these technologies.
当调用URL <$ c时，我得到了404异常$ C>的http：//本地主机：8080 / RakeshMavenProject /书。
我已经创建了控制器，服务，Dao类，并在 AppConfig.java 中提到了配置参数。
I have created controller,service,Dao classes and mentioned the configuration parameters in AppConfig.java
@Configuration
@EnableTransactionManagement
@ComponentScans(value = {@ComponentScan("com.example.ws.maven_web_service_project.service"),
@ComponentScan("com.example.ws.maven_web_service_project.dao")})
public class AppConfig {
@Bean
public LocalSessionFactoryBean sessionFactoryBean(){
LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean();
sessionFactoryBean.setDataSource(dataSource());
sessionFactoryBean.setPackagesToScan(new String[] { "com.example.ws.maven_web_service_project.model" });
sessionFactoryBean.setHibernateProperties(hibernateProperties());
return sessionFactoryBean;
}
@Bean
public DataSource dataSource(){
DriverManagerDataSource ds = new DriverManagerDataSource();
ds.setDriverClassName("com.mysql.jdbc.Driver");
ds.setUrl("jdbc:mysql://localhost:3306/hibernate_test");
ds.setUsername("root");
ds.setPassword("root");
return ds;
}
private Properties hibernateProperties(){
Properties props = new Properties();
props.put("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
props.put("hibernate.show_sql", "true");
props.put("hibernate.hbm2ddl.auto", "update");
// Setting C3P0 properties
props.put("hibernate.c3p0.min_size", 5);
props.put("hibernate.c3p0.max_size", 20);
props.put("hibernate.c3p0.acquire_increment",
1);
props.put("hibernate.c3p0.timeout", 1800);
props.put("hibernate.c3p0.max_statements", 150);
return props;
}
@Bean
@Autowired
public HibernateTransactionManager transactionManager(SessionFactory s){
HibernateTransactionManager txManager = new HibernateTransactionManager();
txManager.setSessionFactory(s);
return txManager;
}
}
服务器的代码。 xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
--><!-- Note: A "Server" is not itself a "Container", so you may not
define subcomponents such as "Valves" at this level.
Documentation at /docs/config/server.html
--><Server port="8005" shutdown="SHUTDOWN">
<Listener className="org.apache.catalina.startup.VersionLoggerListener"/>
<!-- Security listener. Documentation at /docs/config/listeners.html
<Listener className="org.apache.catalina.security.SecurityListener" />
-->
<!--APR library loader. Documentation at /docs/apr.html -->
<Listener SSLEngine="on" className="org.apache.catalina.core.AprLifecycleListener"/>
<!-- Prevent memory leaks due to use of particular java/javax APIs-->
<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/>
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
<Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener"/>
<!-- Global JNDI resources
Documentation at /docs/jndi-resources-howto.html
-->
<GlobalNamingResources>
<!-- Editable user database that can also be used by
UserDatabaseRealm to authenticate users
-->
<Resource auth="Container" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" name="UserDatabase" pathname="conf/tomcat-users.xml" type="org.apache.catalina.UserDatabase"/>
</GlobalNamingResources>
<!-- A "Service" is a collection of one or more "Connectors" that share
a single "Container" Note: A "Service" is not itself a "Container",
so you may not define subcomponents such as "Valves" at this level.
Documentation at /docs/config/service.html
-->
<Service name="Catalina">
<!--The connectors can use a shared executor, you can define one or more named thread pools-->
<!--
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
maxThreads="150" minSpareThreads="4"/>
-->
<!-- A "Connector" represents an endpoint by which requests are received
and responses are returned. Documentation at :
Java HTTP Connector: /docs/config/http.html
Java AJP Connector: /docs/config/ajp.html
APR (HTTP/AJP) Connector: /docs/apr.html
Define a non-SSL/TLS HTTP/1.1 Connector on port 8080
-->
<Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/>
<!-- A "Connector" using the shared thread pool-->
<!--
<Connector executor="tomcatThreadPool"
port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
-->
<!-- Define a SSL/TLS HTTP/1.1 Connector on port 8443
This connector uses the NIO implementation. The default
SSLImplementation will depend on the presence of the APR/native
library and the useOpenSSL attribute of the
AprLifecycleListener.
Either JSSE or OpenSSL style configuration may be used regardless of
the SSLImplementation selected. JSSE style configuration is used below.
-->
<!--
<Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"
maxThreads="150" SSLEnabled="true">
<SSLHostConfig>
<Certificate certificateKeystoreFile="conf/localhost-rsa.jks"
type="RSA" />
</SSLHostConfig>
</Connector>
-->
<!-- Define a SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2
This connector uses the APR/native implementation which always uses
OpenSSL for TLS.
Either JSSE or OpenSSL style configuration may be used. OpenSSL style
configuration is used below.
-->
<!--
<Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol"
maxThreads="150" SSLEnabled="true" >
<UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" />
<SSLHostConfig>
<Certificate certificateKeyFile="conf/localhost-rsa-key.pem"
certificateFile="conf/localhost-rsa-cert.pem"
certificateChainFile="conf/localhost-rsa-chain.pem"
type="RSA" />
</SSLHostConfig>
</Connector>
-->
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443"/>
<!-- An Engine represents the entry point (within Catalina) that processes
every request. The Engine implementation for Tomcat stand alone
analyzes the HTTP headers included with the request, and passes them
on to the appropriate Host (virtual host).
Documentation at /docs/config/engine.html -->
<!-- You should set jvmRoute to support load-balancing via AJP ie :
<Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
-->
<Engine defaultHost="localhost" name="Catalina">
<!--For clustering, please take a look at documentation at:
/docs/cluster-howto.html (simple how to)
/docs/config/cluster.html (reference documentation) -->
<!--
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
-->
<!-- Use the LockOutRealm to prevent attempts to guess user passwords
via a brute-force attack -->
<Realm className="org.apache.catalina.realm.LockOutRealm">
<!-- This Realm uses the UserDatabase configured in the global JNDI
resources under the key "UserDatabase". Any edits
that are performed against this UserDatabase are immediately
available for use by the Realm. -->
<Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/>
</Realm>
<Host appBase="webapps" autoDeploy="true" name="localhost" unpackWARs="true">
<!-- SingleSignOn valve, share authentication between web applications
Documentation at: /docs/config/valve.html -->
<!--
<Valve className="org.apache.catalina.authenticator.SingleSignOn" />
-->
<!-- Access log processes all example.
Documentation at: /docs/config/valve.html
Note: The pattern used is equivalent to using pattern="common" -->
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" pattern="%h %l %u %t "%r" %s %b" prefix="localhost_access_log" suffix=".txt"/>
<Context docBase="RakeshMavenProject" path="/RakeshMavenProject" reloadable="true" source="org.eclipse.jst.jee.server:RakeshMavenProject"/></Host>
</Engine>
</Service>
</Server>
更新：我提到我的控制器的代码 class
Update : I am mentioning the code of my controller class
@RestController
public class BookController {
@Autowired
private BookService bookService;
//@PostMapping("/book")
@RequestMapping(value="/book/", method= RequestMethod.POST,headers="Accept=application/json")
public @ResponseBody ResponseEntity<?> saveBook(@RequestBody Book book){
int bookId = bookService.saveBook(book);
return ResponseEntity.ok().body("Your Book with Id "+ bookId +" save successfully.");
}
// @GetMapping("/book/{id}")
@RequestMapping(value="/book/{id}", method= RequestMethod.GET,headers="Accept=application/json")
public @ResponseBody ResponseEntity<Book> getBook(@PathVariable("id") int bookId){
Book book = bookService.getBook(bookId);
return ResponseEntity.ok().body(book);
}
@RequestMapping(value="/book/", method= RequestMethod.GET,headers="Accept=application/json")
public @ResponseBody ResponseEntity<List<Book>> list() {
List<Book> books = bookService.listBooks();
return ResponseEntity.ok().body(books);
}
}
任何人都可以帮我找到解决方案。
Please anyone help me to find the solution.
推荐答案
您需要在控制器级别 @RestContoller（'myController'）或者在每个方法级别，如
@RequestMapping（value =myController / book /，method = RequestMethod.POST，headers =Accept = application / json）
You need to specify mapping either at controller level @RestContoller('myController') or at each method level like
@RequestMapping(value="myController/book/", method= RequestMethod.POST,headers="Accept=application/json")
您的网址将为 http：// localhost：8080 / RakeshMavenProject / myController / book 。
这篇关于Spring + Hibernate-获取404例外的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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