Java JAX-RS:Jersey+;Genson=MessageBodyProviderNotFoundException
我正在使用JAX-RS(Jersey)和Glassfish作为服务器开发RESTful web服务。我实现了返回实体列表的简单方法,当我试图访问它时,服务器会抛出500个错误 org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException: 找不到媒体类型为application/json的MessageBodyWriter 我试图将Genson库添加到我的项目中,但这没有帮助。我的代码怎么了 我的实体Java JAX-RS:Jersey+;Genson=MessageBodyProviderNotFoundException,java,glassfish,jersey,jax-rs,genson,Java,Glassfish,Jersey,Jax Rs,Genson,我正在使用JAX-RS(Jersey)和Glassfish作为服务器开发RESTful web服务。我实现了返回实体列表的简单方法,当我试图访问它时,服务器会抛出500个错误 org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException: 找不到媒体类型为application/json的MessageBodyWriter 我试图将Genson库添加到我的项目中,但这没有帮助。我的代码怎么了 我的实体 @Xm
@XmlRootElement
public class Device {
public Device(){}
public Device(String vendor, String model) {
this.vendor = vendor;
this.model = model;
}
public String vendor;
public String model;
}
服务
@Path("devices")
public class Devices {
@Context
Application app;
@Context
Providers providers;
@GET
@Consumes({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
@Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
public Response getAll(){
List<Device> result = new ArrayList<>();
result.add(new Device("Samsung","Galaxy S4"));
return Response.ok().entity(result).build();
}
}
@Path(“设备”)
公共类设备{
@上下文
应用程序;
@上下文
供应商;
@得到
@使用({MediaType.APPLICATION\uxml,MediaType.APPLICATION\ujson})
@产生({MediaType.APPLICATION_XML,MediaType.APPLICATION_JSON})
公众回应getAll(){
列表结果=新建ArrayList();
结果。添加(新设备(“三星”、“Galaxy S4”);
返回Response.ok().entity(result.build();
}
}
Web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<display-name>Kontroller</display-name>
<servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.drozdov.kontroller.api, com.drozdov.kontroller.models</param-value>
</init-param>
<init-param>
<param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/api/*</url-pattern>
</servlet-mapping>
</web-app>
<?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.drozdov</groupId>
<artifactId>Kontroller</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>com.owlike</groupId>
<artifactId>genson</artifactId>
<version>0.99</version>
</dependency>
</dependencies>
</project>
康特罗尔
泽西岛休息服务
org.glassfish.jersey.servlet.ServletContainer
jersey.config.server.provider.packages
com.drozdov.kontroller.api,com.drozdov.kontroller.models
com.sun.jersey.api.json.POJOMappingFeature
真的
1.
泽西岛休息服务
/原料药/*
Pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<display-name>Kontroller</display-name>
<servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.drozdov.kontroller.api, com.drozdov.kontroller.models</param-value>
</init-param>
<init-param>
<param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/api/*</url-pattern>
</servlet-mapping>
</web-app>
<?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.drozdov</groupId>
<artifactId>Kontroller</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>com.owlike</groupId>
<artifactId>genson</artifactId>
<version>0.99</version>
</dependency>
</dependencies>
</project>
4.0.0
com.drozdov
康特罗尔
1.0-快照
com.owlike
根森
0.99
您正在使用Jersey 2吗?如果是,这可能就是它不起作用的原因。请试用最新的Genson版本。它也应该是开箱即用的Jersey 2+
<dependency>
<groupId>com.owlike</groupId>
<artifactId>genson</artifactId>
<version>1.2</version>
</dependency>
com.owlike
根森
1.2
如果application/xml出现同样的错误,我该怎么办?我是JEE world的新手,请帮助…一般来说,此错误意味着Jersey不知道如何将此mime类型的数据序列化/反序列化到某个类中。Genson为json提供了这样的特性。您需要类似的东西来处理xml。它应该配有球衣。。。