标签: spring-boot

有了这段代码

@RequestMapping(value = "/bar/foo", method = RequestMethod.GET)
    public ResponseEntity<foo> foo() {

        Foo model;
        ...
        return ResponseEntity.ok(model);
    }
}

我得到以下异常

java.lang.IllegalArgumentException: No converter found for return value of type

我的猜测是,由于杰克逊失踪,该对象无法转换为JSON.我不明白为什么,因为我认为杰克逊是用春季靴子建造的.

然后我试图将Jackson添加到pom.xml但我仍然有同样的错误

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.4.3</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.4.3</version>
</dependency>

我是否必须更改任何弹簧启动属性才能使其正常工作？

谢谢

pom.xml在Eclipse IDE的第1行出现未知错误。到昨天为止，它工作正常，但是在从master更新我的项目并修复合并冲突之后突然在pom.xml中获得了“未知错误”。除了我，我的队友都没有面对这个问题。我还更改了工作区，删除了缓存，但仍然没有运气。

我正在为此项目使用h2数据库，尽管在data.sql中插入了值，但它没有选择任何值并将其插入到h2 DB表中。在此问题之前，它工作正常。我感觉是由于pom.xml中的问题引起的，但是我不确定。请帮忙

我删除了现有项目，并从master那里获取了最新代码。之后，删除包括存储库文件夹在内的用户下的.m2文件夹。我确实更新了项目，并启用了强制更新快照/发行版，maven clean和maven build。但是没有任何帮助。

pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.abc.roster</groupId>
    <artifactId>spring-boot-roster-app</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
    <name>spring-boot-roster-app</name>
    <description>Demo project for Spring Boot Roster</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.0.BUILD-SNAPSHOT</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <!-- <start-class>com.infosys.roster.SpringBootRosterAppApplication</start-class> -->
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <!--encryption lib -->
        <dependency>
            <groupId>org.jasypt</groupId>
            <artifactId>jasypt</artifactId>
            <version>1.9.2</version>
        </dependency>

        <dependency>
            <groupId>org.jasypt</groupId>
            <artifactId>jasypt-springsecurity3</artifactId>
            <version>1.9.0</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId> …

我最近想将我的 kotlin 项目从 spring boot 2.7.x 升级到 3.0.1。我使用 Java 17 temurin，gradle 7.6。在 IntelliJ 中，我在通过 gradle 导入项目时收到以下错误消息：

A problem occurred configuring root project 'demo'.
> Could not resolve all files for configuration ':classpath'.
   > Could not resolve org.springframework.boot:spring-boot-gradle-plugin:3.0.1.
     Required by:
         project : > org.springframework.boot:org.springframework.boot.gradle.plugin:3.0.1
      > No matching variant of org.springframework.boot:spring-boot-gradle-plugin:3.0.1 was found. The consumer was configured to find a runtime of a library compatible with Java 11, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' …

我试图在另一个应用程序(spring-boot应用程序)上调用REST端点(angularjs).应用程序在以下主机和端口上运行.

• REST应用程序,使用spring boot, http://localhost:8080
• HTML应用程序,使用angularjs, http://localhost:50029

我也在使用spring-securityspring-boot应用程序.从HTML应用程序,我可以对REST应用程序进行身份验证,但此后,我仍然无法访问任何REST端点.例如,我有一个如下定义的angularjs服务.

adminServices.factory('AdminService', ['$resource', '$http', 'conf', function($resource, $http, conf) {
    var s = {};
    s.isAdminLoggedIn = function(data) {
        return $http({
            method: 'GET',
            url: 'http://localhost:8080/api/admin/isloggedin',
            withCredentials: true,
            headers: {
                'X-Requested-With': 'XMLHttpRequest'
            }
        });
    };
    s.login = function(username, password) {
        var u = 'username=' + encodeURI(username);
        var p = 'password=' + encodeURI(password);
        var r = 'remember_me=1';
        var data = u + '&' + p + '&' + r;

        return $http({
            method: 'POST',
            url: 'http://localhost:8080/login',
            data: …

我正在尝试将Spring Boot应用程序部署到Tomcat,因为我想部署到AWS.我创建了一个WAR文件,但它似乎不在Tomcat上运行,即使它是可见的.

详细信息:
0.这是我的应用程序:

@Configuration
@ComponentScan
@EnableAutoConfiguration
public class App {
    public static void main(String[] args) {
        SpringApplication.run(SampleController.class, args);
    }
}

@Controller
@EnableAutoConfiguration
public class SampleController {
    @RequestMapping("/help")
    @ResponseBody
    String home() {
        String input = "Hi! Please use 'tag','check' and 'close' resources.";
        return input;
    }
}

application.properties有以下内容:

server.port=${port:7777}

1. 在阅读了许多页面和问题后,我在POM中添加了以下内容:

   http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0

   <groupId>com.niewlabs</groupId>
   <artifactId>highlighter</artifactId>
   <version>1.0-SNAPSHOT</version>
   
   <packaging>war</packaging>
   
   <properties>
       <java.version>1.8</java.version>
   </properties>    
   <parent>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-parent</artifactId>
       <version>1.1.9.RELEASE</version>
   </parent>    
   <dependencies>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-web</artifactId>
       </dependency>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-tomcat</artifactId>
           <scope>provided</scope>
       </dependency>
   </dependencies>
   

   Run Code Online (Sandbox Code Playgroud)

2. 我运行了"mvn package"并获得了WAR文件(大小为250Mb),我将其放入"webapps"文件夹中. …

我正在尝试在我的Spring Boot(1.2.0.M1)应用程序中设置HikariCP,因此我可以使用它来代替Tomcat DBCP进行测试.我想在我的application.properties文件中配置连接池,就像我在使用Tomcat一样,但我无法弄清楚我应该怎么做.我发现的所有示例都显示了JavaConfig样式,或者使用单独的HikariCP属性文件.有人可以帮我弄清楚在application.properties中配置它的属性名吗？我还想从使用driverClassName方法切换到DataSourceClassName方法,因为它看起来更干净,建议使用.这在我的application.properties文件中也可以吗？

这是我对Tomcat DBCP的看法(只是一些基本的配置,没有完全刷新)

spring.datasource.validation-query=SELECT 1
spring.datasource.max-active=10
spring.datasource.max-idle=8
spring.datasource.min-idle=8
spring.datasource.initial-size=5
spring.datasource.test-on-borrow=true
spring.datasource.test-on-return=true

我目前正在使用driverClassName和jdbc url来建立连接:

spring.datasource.url=jdbc:mysql://localhost:3306/myDb
spring.datasource.driverClassName=com.mysql.jdbc.Driver

我有一个示例Spring Boot应用程序,其中包含以下内容

启动主类

@SpringBootApplication
public class DemoApplication {

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

调节器

@RestController
@EnableAutoConfiguration
public class HelloWorld {
    @RequestMapping("/")
    String gethelloWorld() {
        return "Hello World!";
    }

}

为控制器编写单元测试最简单的方法是什么？我尝试了以下但它抱怨无法自动装载WebApplicationContext

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = DemoApplication.class)
public class DemoApplicationTests {

    final String BASE_URL = "http://localhost:8080/";

    @Autowired
    private WebApplicationContext wac;

    private MockMvc mockMvc;

    @Before
    public void setup() {
        this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();
    }

    @Test
    public void testSayHelloWorld() throws Exception{

         this.mockMvc.perform(get("/")
                 .accept(MediaType.parseMediaType("application/json;charset=UTF-8")))
                 .andExpect(status().isOk())
                 .andExpect(content().contentType("application/json"));
    }

    @Test
    public void contextLoads() {
    } …

我正在尝试升级到 Spring Boot 3.0.0 和 Spring Security 6.0。

我发现保护请求的方法authorizeRequests()已被弃用。还有方法antMatchers()和@EnableGlobalMethodSecurity注释也已删除。如何升级我的安全配置？

我的代码：

package org.sid.securityservice.config;

import com.nimbusds.jose.jwk.JWK;
import com.nimbusds.jose.jwk.JWKSet;
import com.nimbusds.jose.jwk.RSAKey;
import com.nimbusds.jose.jwk.source.ImmutableJWKSet;
import com.nimbusds.jose.jwk.source.JWKSource;
import com.nimbusds.jose.proc.SecurityContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.ProviderManager;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.Customizer;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configurers.oauth2.server.resource.OAuth2ResourceServerConfigurer;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.oauth2.jwt.JwtDecoder;
import org.springframework.security.oauth2.jwt.JwtEncoder;
import org.springframework.security.oauth2.jwt.NimbusJwtDecoder;
import org.springframework.security.oauth2.jwt.NimbusJwtEncoder;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;
import org.springframework.security.web.SecurityFilterChain;

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig …

Spring-Boot是一个非常棒的工具,但是当涉及更高级的配置时,文档有点稀疏.如何设置数据库连接池的最大大小等属性？

Spring的引导支持tomcat-jdbc,HikariCP以及Commons DBCP原生的它们都配置了相同的方式吗？

Springfox 3.0.0 无法与 Spring Boot 2.6.0 一起使用，升级后出现以下错误

org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException: Cannot invoke "org.springframework.web.servlet.mvc.condition.PatternsRequestCondition.getPatterns()" because "this.condition" is null
    at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:181)
    at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54)
    at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356)
    at java.base/java.lang.Iterable.forEach(Iterable.java:75)
    at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155)
    at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123)
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:302)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1290)
    at com.enkindle.AntivirusApplication.main(AntivirusApplication.java:16)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: java.lang.NullPointerException: Cannot invoke "org.springframework.web.servlet.mvc.condition.PatternsRequestCondition.getPatterns()" because "this.condition" is null
    at springfox.documentation.spring.web.WebMvcPatternsRequestConditionWrapper.getPatterns(WebMvcPatternsRequestConditionWrapper.java:56)
    at springfox.documentation.RequestHandler.sortedPaths(RequestHandler.java:113)
    at …