登录
当前位置： 首页 > 知识库问答 >
问题：

仅在REST API上调用Spring Boot 404

黄正浩
2023-03-14

我正在开发一个需要部署在tomcat（WAR文件）上的Spring-Boot Web应用程序。当以Java形式运行应用程序时（右键单击application.Java文件并在Eclipse中以Java形式运行），或者通过mvnw.cmd spring-boot：run运行时，一切工作都很好（主页显示，所有CRUD操作都工作）。

当我导出WAR文件并部署到tomcat时，我的静态web内容和主页仍然可以正常加载，但任何API调用都返回404响应。

这个项目是使用Spring Initializr创建的。我尝试过通过Eclipse war export和mvnw.cmd包进行导出。将WAR文件放置在服务器上的webapps目录中并运行。

package com.blank.systemshare;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SystemshareApplication {

    public static void main(String[] args) {
        SpringApplication.run(SystemshareApplication.class, args);
    }

}

package com.blank.systemshare;

import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

public class ServletInitializer extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(SystemshareApplication.class);
    }

}

package com.blank.systemshare.controller;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.blank.systemshare.exception.ResourceNotFoundException;
import com.blank.systemshare.model.System;
import com.blank.systemshare.repository.SystemRepository;

@RestController
@RequestMapping("/api/v1/")
public class SystemController {

    @Autowired
    private SystemRepository systemRepository;

    // get systems

    @GetMapping("systems")
    public List<System> getSystems() {
        return this.systemRepository.findAllByOrderByVersionDesc();
    }

    // create system
    @PostMapping("systems")
    public System createSystem(@RequestBody System system) {
        return this.systemRepository.save(system);
    }

    // update system
    @PutMapping("systems/{id}")
    public ResponseEntity<System> updateSystem(@PathVariable(value = "id") Long systemId,
                                               @Valid @RequestBody System systemDetails) throws ResourceNotFoundException {

        System system = systemRepository.findById(systemId)
                .orElseThrow(() -> new ResourceNotFoundException("System not found - ID: " + systemId));

        system.setVersion(systemDetails.getVersion());
        system.setUrl(systemDetails.getUrl());
        system.setCredentials(systemDetails.getCredentials());
        system.setFrameworks(systemDetails.getFrameworks());
        system.setFw_credentials(systemDetails.getFw_credentials());
        system.setNotes(systemDetails.getNotes());
        system.setOwner(systemDetails.getOwner());

        return ResponseEntity.ok(this.systemRepository.save(system));
    }

    //delete system
    @DeleteMapping("systems/{id}")
    public  Map<String, Boolean> deleteSystem(@PathVariable(value = "id") Long systemId) throws ResourceNotFoundException {

        System system = systemRepository.findById(systemId)
                .orElseThrow(() -> new ResourceNotFoundException("System not found - ID: " + systemId));

        this.systemRepository.delete(system);

        Map<String, Boolean> response = new HashMap<>();
        response.put("deleted",  Boolean.TRUE);

        return response;
    }

}

package com.blank.systemshare.repository;

import java.util.List;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import com.blank.systemshare.model.System;

@Repository
public interface SystemRepository extends JpaRepository<System, Long>{
    public List<System> findAllByOrderByVersionDesc();
}

var systemShareApp = angular.module('systemShareApp', [])
.controller('mainController', ($scope, $http, $window) => {

    $scope.version = '1.0';
    $scope.systemData = {};
    $scope.createSystemFormData = {};
    $scope.editSystemFormData = {};

    $scope.dbErrorStatus = false;



    // Get all systems
    var getAllSystems = function() {
        $http.get('/systemshare/api/v1/systems')
        .success((data) => {
            $scope.systemData = data;
            $scope.dbErrorStatus = false;
            console.log(data);
        })
        .error((error) => {
            console.log('Error: ' + error);
            $scope.dbErrorStatus = true;
        });
    };

  //initial load of page - get systems.
    getAllSystems();




    // Create a new system
    $scope.createSystem = () => {

        $http.post('/systemshare/api/v1/systems', $scope.createSystemFormData)
            .success((data) => {
                $scope.createSystemFormData = {};
                getAllSystems();
            })
            .error((error) => {
                console.log('Error: ' + error);
            });
    };


    // Delete a system
    $scope.deleteSystem = (systemID) => {
        $http.delete('/systemshare/api/v1/systems/' + systemID)
            .success((data) => {
                getAllSystems();
            })
            .error((data) => {
                console.log('Error: ' + data);
            });
    };

    // Update a system
    $scope.updateSystem = (systemID) => {
        $http.put('/systemshare/api/v1/systems/' + systemID, $scope.editSystemFormData)
            .success((data) => {
                $scope.editSystemFormData = {};
                getAllSystems();
            })
            .error((data) => {
                console.log('Error: ' + data);
            });
    };

    //select system function for transfer of object data in list to modal. 
    $scope.selectSystem = function(system) {

        $scope.thisSystem = system;
        //editSystemFormData Modal updates:
        $scope.editSystemFormData.owner = system.owner;
        $scope.editSystemFormData.version = system.version;
        $scope.editSystemFormData.url = system.url;
        $scope.editSystemFormData.credentials = system.credentials;
        $scope.editSystemFormData.frameworks = system.frameworks;
        $scope.editSystemFormData.fw_credentials = system.fw_credentials;
        $scope.editSystemFormData.notes = system.notes;
    };
});

spring.datasource.url=jdbc:postgresql://xx.xx.xxx.xxx:5432/systemshare
spring.datasource.username=xx
spring.datasource.password=xx
spring.jpa.show-sql=true

## Hibernate Properties
# The SQL dialect makes Hibernate generate better SQL for the chosen database
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect

# Hibernate ddl auto (create, create-drop, validate, update)
spring.jpa.hibernate.ddl-auto=update

server.servlet.contextPath=/systemshare

    <?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.2.6.RELEASE</version>
            <relativePath/> <!-- lookup parent from repository -->
        </parent>
        <groupId>com.blank</groupId>
        <artifactId>systemshare</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>war</packaging>
        <name>systemshare</name>
        <description>System Share Project</description>

        <properties>
            <java.version>1.8</java.version>
        </properties>

        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-jpa</artifactId>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <scope>runtime</scope>
                <optional>true</optional>
            </dependency>
            <dependency>
                <groupId>org.postgresql</groupId>
                <artifactId>postgresql</artifactId>
                <scope>runtime</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-tomcat</artifactId>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
                <exclusions>
                    <exclusion>
                        <groupId>org.junit.vintage</groupId>
                        <artifactId>junit-vintage-engine</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
        </dependencies>

        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
</project>

mvnw.cmd spring-boot:run
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------< com.blank:systemshare >------------------------
[INFO] Building systemshare 0.0.1-SNAPSHOT
[INFO] --------------------------------[ war ]---------------------------------
[INFO]
[INFO] >>> spring-boot-maven-plugin:2.2.6.RELEASE:run (default-cli) > test-compile @ systemshare >>>
[INFO]
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ systemshare ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 4 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ systemshare ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 8 source files to C:\Users\user\Documents\JavaProjects\systemshare\target\classes
[INFO]
[INFO] --- maven-resources-plugin:3.1.0:testResources (default-testResources) @ systemshare ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory C:\Users\user\Documents\JavaProjects\systemshare\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:testCompile (default-testCompile) @ systemshare ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to C:\Users\user\Documents\JavaProjects\systemshare\target\test-classes
[INFO]
[INFO] <<< spring-boot-maven-plugin:2.2.6.RELEASE:run (default-cli) < test-compile @ systemshare <<<
[INFO]
[INFO]
[INFO] --- spring-boot-maven-plugin:2.2.6.RELEASE:run (default-cli) @ systemshare ---
[INFO] Attaching agents: []

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.2.6.RELEASE)

2020-04-21 14:50:58.430  INFO 19748 --- [  restartedMain] c.p.systemshare.SystemshareApplication   : Starting SystemshareApplication on L37853WUS with PID 19748 (C:\Users\user\Documents\JavaProjects\systemshare\target\classes started by userin C:\Users\mck
eb2\Documents\JavaProjects\systemshare)
2020-04-21 14:50:58.435  INFO 19748 --- [  restartedMain] c.p.systemshare.SystemshareApplication   : No active profile set, falling back to default profiles: default
2020-04-21 14:50:58.513  INFO 19748 --- [  restartedMain] o.s.b.devtools.restart.ChangeableUrls    : The Class-Path manifest attribute in C:\Users\user\.m2\repository\org\glassfish\jaxb\jaxb-runtime\2.3.2\jaxb-runtime-2.3.2.jar referenced one or more files th
at do not exist: file:/C:/Users/user/.m2/repository/org/glassfish/jaxb/jaxb-runtime/2.3.2/jakarta.xml.bind-api-2.3.2.jar,file:/C:/Users/user/.m2/repository/org/glassfish/jaxb/jaxb-runtime/2.3.2/txw2-2.3.2.jar,file:/C:/Users/user/.m2/repository/org/glassfi
sh/jaxb/jaxb-runtime/2.3.2/istack-commons-runtime-3.0.8.jar,file:/C:/Users/user/.m2/repository/org/glassfish/jaxb/jaxb-runtime/2.3.2/stax-ex-1.8.1.jar,file:/C:/Users/user/.m2/repository/org/glassfish/jaxb/jaxb-runtime/2.3.2/FastInfoset-1.2.16.jar,file:/C:/U
sers/user/.m2/repository/org/glassfish/jaxb/jaxb-runtime/2.3.2/jakarta.activation-api-1.2.1.jar
2020-04-21 14:50:58.513  INFO 19748 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2020-04-21 14:50:58.513  INFO 19748 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2020-04-21 14:50:59.303  INFO 19748 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2020-04-21 14:50:59.383  INFO 19748 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 71ms. Found 1 JPA repository interfaces.
2020-04-21 14:51:00.475  INFO 19748 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2020-04-21 14:51:00.489  INFO 19748 --- [  restartedMain] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2020-04-21 14:51:00.490  INFO 19748 --- [  restartedMain] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.33]
2020-04-21 14:51:00.674  INFO 19748 --- [  restartedMain] o.a.c.c.C.[.[localhost].[/systemshare]   : Initializing Spring embedded WebApplicationContext
2020-04-21 14:51:00.675  INFO 19748 --- [  restartedMain] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 2161 ms
2020-04-21 14:51:00.858  INFO 19748 --- [  restartedMain] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [name: default]
2020-04-21 14:51:00.942  INFO 19748 --- [  restartedMain] org.hibernate.Version                    : HHH000412: Hibernate ORM core version 5.4.12.Final
2020-04-21 14:51:01.117  INFO 19748 --- [  restartedMain] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
2020-04-21 14:51:01.228  INFO 19748 --- [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2020-04-21 14:51:01.603  INFO 19748 --- [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.
2020-04-21 14:51:01.621  INFO 19748 --- [  restartedMain] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
2020-04-21 14:51:02.803  INFO 19748 --- [  restartedMain] o.h.e.t.j.p.i.JtaPlatformInitiator       : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2020-04-21 14:51:02.810  INFO 19748 --- [  restartedMain] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2020-04-21 14:51:02.825  INFO 19748 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729
2020-04-21 14:51:03.186  WARN 19748 --- [  restartedMain] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view
to disable this warning
2020-04-21 14:51:03.334  INFO 19748 --- [  restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2020-04-21 14:51:03.402  INFO 19748 --- [  restartedMain] o.s.b.a.w.s.WelcomePageHandlerMapping    : Adding welcome page: class path resource [static/index.html]
2020-04-21 14:51:03.571  INFO 19748 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path '/systemshare'
2020-04-21 14:51:03.575  INFO 19748 --- [  restartedMain] c.p.systemshare.SystemshareApplication   : Started SystemshareApplication in 5.624 seconds (JVM running for 6.47)
2020-04-21 14:51:17.737  INFO 19748 --- [nio-8080-exec-1] o.a.c.c.C.[.[localhost].[/systemshare]   : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-04-21 14:51:17.737  INFO 19748 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2020-04-21 14:51:17.745  INFO 19748 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 7 ms

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.2.6.RELEASE)

2020-04-21 14:55:49.434  INFO 12280 --- [ost-startStop-1] com.blank.systemshare.ServletInitializer  : Starting ServletInitializer v0.0.1-SNAPSHOT on L37853WUS with PID 12280 (C:\Users\user\Documents\Software\apache-tomcat-8.5.29\webapps\systemshare\WEB-INF\classes started by user in C:\Users\user\Documents\Software\apache-tomcat-8.5.29\bin)
2020-04-21 14:55:49.451  INFO 12280 --- [ost-startStop-1] com.blank.systemshare.ServletInitializer  : No active profile set, falling back to default profiles: default
2020-04-21 14:55:52.213  INFO 12280 --- [ost-startStop-1] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2020-04-21 14:55:52.458  INFO 12280 --- [ost-startStop-1] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 200ms. Found 1 JPA repository interfaces.
2020-04-21 14:55:53.923  INFO 12280 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 4212 ms
2020-04-21 14:55:55.125  INFO 12280 --- [ost-startStop-1] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [name: default]
2020-04-21 14:55:55.675  INFO 12280 --- [ost-startStop-1] org.hibernate.Version                    : HHH000412: Hibernate ORM core version 5.4.12.Final
2020-04-21 14:55:56.461  INFO 12280 --- [ost-startStop-1] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
2020-04-21 14:55:57.051  INFO 12280 --- [ost-startStop-1] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2020-04-21 14:55:57.633  INFO 12280 --- [ost-startStop-1] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.
2020-04-21 14:55:57.728  INFO 12280 --- [ost-startStop-1] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
2020-04-21 14:56:01.538  INFO 12280 --- [ost-startStop-1] o.h.e.t.j.p.i.JtaPlatformInitiator       : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2020-04-21 14:56:01.578  INFO 12280 --- [ost-startStop-1] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2020-04-21 14:56:03.216  WARN 12280 --- [ost-startStop-1] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2020-04-21 14:56:03.699  INFO 12280 --- [ost-startStop-1] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2020-04-21 14:56:04.075  INFO 12280 --- [ost-startStop-1] o.s.b.a.w.s.WelcomePageHandlerMapping    : Adding welcome page: class path resource [static/index.html]
2020-04-21 14:56:04.472  INFO 12280 --- [ost-startStop-1] com.blank.systemshare.ServletInitializer  : Started ServletInitializer in 16.741 seconds (JVM running for 32.139)
21-Apr-2020 14:56:04.517 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [C:\Users\user\Documents\Software\apache-tomcat-8.5.29\webapps\systemshare.war] has finished in [25,067] ms

{
"timestamp":"2020-04-21T19:50:27.749+0000",
"status":404,
"error":"Not Found",
"message":"No message available",
"path":"/systemshare/api/v1/systems"
}

此外，tomcat日志没有显示任何有用的内容。

共有1个答案

夏法
2023-03-14

移除ServletInitializer.java类并将我的应用程序文件更新为以下内容解决了这个问题（扩展SpringBootServletInitializer并重写configure方法）。请注意，我以前尝试过这种方法，但同时使用Eclipse和InteliJ构建了应用程序。这两次还是发生了同样的问题。最后一次，我使用mvnw package进行构建，在目标目录中生成的WAR工作了。

package com.blank.systemshare;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

@SpringBootApplication
public class SystemshareApplication extends SpringBootServletInitializer {

    public static void main(String[] args) {
        SpringApplication.run(SystemshareApplication.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(SystemshareApplication.class);
    }

}
 类似资料：
  • Android onRequest estPermissionsResult仅在活动上调用，而不是在片段上调用

    我有一个包含片段的活动。我请求该活动给予以下联系许可： 从片段中，我请求如下摄像头许可：

  • 使用RESTAPI上传Azure Blob

    我使用已签名的URL从使用Air的移动设备上传blob。 我有两个问题: 使用签名 URL 上传 Blob 时，我假设我不需要按照文档中所述包含所有标头。我是否认为我只需要对URL执行请求，并将编码到正文中的文件包含在正文中，设置为？ http://msdn . Microsoft . com/en-us/library/windows azure/DD 179451 . aspx （Upload

  • 仅在androidTest上：仅从Android O开始支持调用海关

    我的代码库使用了一些Java 8语法，比如lambdas，并且在很长一段时间内都运行良好。 最近，我在一个模块中的仪表化测试停止了与臭名昭著的消息一起工作： AGPBI： {“种类”：“错误”，“文本”：“仅支持从 Android O （--min-api 26）开始调用自定义”“，”源“：[{}]，”工具“：”D8“} 这是一个已知的问题（有很多问题引用它），但我的编译中有Java 1.8： 该

  • 仅在IE上应用样式

    问题内容： 这是我的CSS块： 我只希望IE 7、8和9能够“看到” 最简单的方法是什么？ 问题答案： 更新2017 根据环境的不同，在IE10 +中已[正式弃用并删除.aspx)了条件注释。 原版的 最简单的方法可能是在HTML中使用Internet Explorer条件注释 您可以使用许多技巧（例如下划线hack），这些技巧将仅允许您将样式表中的IE作为目标，但是如果要在所有平台上将IE的所有

  • 用Java消费restapi

    我有一个管理Web应用程序位于远程服务器上。这个应用程序是使用MEAN堆栈编写的，我有一个连接到网络应用程序所需的所有RESTful路由的列表。 我正在编写一个Java客户端应用程序，它需要从这个管理应用程序发送和接收数据。如果我有服务器的IP地址和REST路由，如何将客户端连接到web应用程序？ 我想我需要提供一个到服务器和RESTAPI文件的URL连接，然后只需调用路由函数，如和。

  • 仅在特定URL上调用自定义Spring Security筛选器

    我有一个Spring Boot应用程序，在其中我试图创建一个自定义安全过滤器，如下所示：

相关问答

仅在特定URL上调用自定义Spring Security筛选器FutureBuilder仅用于调试RecyclerView onBindViewHolder仅在getItemViewType更改时调用仅在加载时调用方法一次Capybara/selenium/chrome：test仅在调用save_screenshot时通过

相关文章

Internet Explorer在window.open和AJAX调用上调用window.onbeforeunloadtoString（）仅对调试有用吗？仅使用CSS在pre上创建行号强制Linux在4G上仅使用内存？如何在特定的ajax调用上调用.ajaxStart（）

相关阅读

在路上 -- sessionSpring Aware接口调用GWT 应用程序调试JDBC存储过程调用MQ这么用，数据丢失的概率仅有0.0001%

相关工具

ASIHTTPRequest调用WebService应用之间调用UIWebView中调用JavascriptGT 随身调Javascript 调试插件

相关文档

Metasploit v4 POC 上手指南 在线阅读Node.js 调试指南Nutz 烹调向导马上着手开发 iOS 应用程序Spark 性能调优总结
快捷导航： 新手教程 算法原理 架构设计 Java进阶 数据库进阶 大厂专栏 面试经验 编程笔记 编程问答 所有专题 文档资料 工具软件 电子书籍 小牛导航
在线工具： 房贷计算器 个税计算器 Linux命令查询 Json格式化 正则表达式 颜色转换 AES加解密 SHA1加密 MD5加密 毒鸡汤 字数统计 随机密码生成 进制转换 Base64编解码 励志句子
Copyright © 2019-2024 小牛知识库@xnip.cn. All Rights Reserved.