为什么在返回使用Java / Jersey的404响应时获得静态文本/ html？ [英] Why do I get static text/html when returning a 404 Response with Java / Jersey?
本文介绍了为什么在返回使用Java / Jersey的404响应时获得静态文本/ html？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在使用Java，Jetty和Jersey 2.18版本（最新版本），它们托管在Google App Engine上。
假设我有一项服务， / p>
@GET
@Produces（MediaType.APPLICATION_JSON）
@Path（/ {userId}）
public Response getUser（@PathParam（userId）String userId）
{
...
}
当我这样做时：
return Response.ok（）
.entity（user）
.build（）;
我正确接收application / json内容类型和正文。
但是当我这样做时：
return响应
.status（404）
.entity （新的ResponseModel（100，找不到用户））
.build（）;
与返回任何4XX或5XX状态相同，我收到一个text / html内容类型这个HTML body：
< html>
< head>
< meta http-equiv =content-typecontent =text / html; charset = utf-8>
< title> 404未找到< / title>
< / head>
< body text =＃000000 bgcolor =＃ffffff>
< h1>错误：未找到< / h1>
< / body>
< / html>
而不是我放入的对象.entity（）
编辑：这是我的web.xml
<？xml version =1.0encoding =utf -8\" >？;
xmlns =http://java.sun.com/xml/ns/javaee
xmlns：xsi = http://www.w3.org/2001/XMLSchema-instance
xsi：schemaLocation =http://java.sun.com/xml/ns/javaee http://java.sun.com/ XML / NS / JavaEE的/网络app_2_5.xsd>
< servlet>
< servlet-name> Jersey Web Application< / servlet-name>
< servlet-class> org.glassfish.jersey.servlet.ServletContainer< / servlet-class>
< init-param>
< param-name> com.sun.jersey.api.json.POJOMappingFeature< / param-name>
< param-value> true< /参数值>
< / init-param>
< init-param>
< param-name> jersey.config.server.provider.packages< / param-name>
< param-value> com.mypackage.services; org.codehaus.jackson.jaxrs< / param-value>
< / init-param>
< init-param>
< param-name> jersey.config.server.provider.classnames< / param-name>
< param-value>
org.glassfish.jersey.server.gae.GaeFeature;
org.glassfish.jersey.server.mvc.jsp.JspMvcFeature;
org.glassfish.jersey.media.multipart.MultiPartFeature;
< / param-value>
< / init-param>
< init-param>
< param-name> com.sun.jersey.config.feature.Trace< / param-name>
< param-value> true< /参数值>
< / init-param>
<加载启动> 1< /加载启动>
< / servlet>
< servlet-mapping>
< servlet-name> Jersey Web Application< / servlet-name>
< url-pattern> / rest / *< / url-pattytern>
< / servlet-mapping>
< welcome-file-list>
< welcome-file> home.jsp< / welcome-file>
< / welcome-file-list>
< filter>
< filter-name> ObjectifyFilter< / filter-name>
< filter-class> com.googlecode.objectify.ObjectifyFilter< / filter-class>
< / filter>
< filter-mapping>
< filter-name> ObjectifyFilter< / filter-name>
< url-pattern> / *< / url-pattern>
< / filter-mapping>
<！ - Spring Security Filter - >
< context-param>
< param-name> contextConfigLocation< / param-name>
< param-value> /WEB-INF/applicationContext.xml< / param-value>
< / context-param>
< listener>
< listener-class> org.springframework.web.context.ContextLoaderListener< / listener-class>
< / listener>
< filter>
< filter-name> GlobalResponseFilter< / filter-name>
< filter-class> com.mypackage.GlobalResponseFilter< / filter-class>
< / filter>
< filter-mapping>
< filter-name> GlobalResponseFilter< / filter-name>
< url-pattern> / *< / url-pattern>
< / filter-mapping>
< filter>
< filter-name> springSecurityFilterChain< / filter-name>
< filter-class> org.springframework.web.filter.DelegatingFilterProxy< / filter-class>
< / filter>
< filter-mapping>
< filter-name> springSecurityFilterChain< / filter-name>
< url-pattern> / *< / url-pattern>
< / filter-mapping>
< security-constraint>
< web-resource-collection>
< web-resource-name>所有< / web-resource-name>
< url-pattern> / *< / url-pattern>
< / web-resource-collection>
< user-data-constraint>
< transport-guarantee> CONFIDENTIAL< / transport-guarantee>
< / user-data-constraint>
< / security-constraint>
<！ - ** - >
<！ - **一般会话超时时间（分钟） - >
<！ - ** - >
< session-config>
< session-timeout> 1440< / session-timeout>
< / session-config>
< / web-app>
ResponseModel只是一个基本的可序列化java类：
import java.io.Serializable;
public class ResponseModel implements Serializable
{
private static final long serialVersionUID = 1L;
private int code;
私有序列化数据;
public ResponseModel（）
{
}
公共ResponseModel（int代码，可序列化数据）
{
System。 err.println（Code+ code +：+ data）;
this.code = code;
this.data = data;
}
public int getCode（）
{
return code;
}
public void setCode（int code）
{
this.code = code;
}
public Serializable getData（）
{
return data;
}
public void setData（可序列化数据）
{
this.data = data;
}
}
解决方案
Can您再次尝试以下配置：
< servlet>
< servlet-name> API< / servlet-name>
< servlet-class> org.glassfish.jersey.servlet.ServletContainer< / servlet-class>
...
< init-param>
< param-name> jersey.config.server.response.setStatusOverSendError< / param-name>
< param-value> true< /参数值>
< / init-param>
< / servlet>
flag 定义了Jersey在发送4xx或5xx响应状态时是否使用 ServletResponse.sendError （标志 false ）或 ServletResponse.setStatus （标志为 true ）。
$ b 调用
ServletResponse.sendError 通常会重置响应实体和标题，并返回一个（text / html）错误页面状态码。 由于您想要返回自定义错误实体，因此您需要将此标志设置为 true 。
I'm working with Java, Jetty and Jersey 2.18 (latest for now) hosted on a Google App Engine.
Let say I have a service such that
@GET
@Produces(MediaType.APPLICATION_JSON)
@Path("/{userId}")
public Response getUser(@PathParam("userId") String userId)
{
...
}
When I do:
return Response.ok()
.entity(user)
.build();
I correctly receive an application/json content-type and body. But when I do:
return Response
.status(404)
.entity(new ResponseModel(100, "user not found"))
.build();
same as for returning any 4XX or 5XX status, I receive a text/html content-type along with this HTML body:
<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>404 Not Found</title>
</head>
<body text=#000000 bgcolor=#ffffff>
<h1>Error: Not Found</h1>
</body>
</html>
and not the object I put in .entity()
Edit: Here is my web.xml
<?xml version="1.0" encoding="utf-8"?>
<web-app
version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>Jersey Web Application</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.mypackage.services;org.codehaus.jackson.jaxrs</param-value>
</init-param>
<init-param>
<param-name>jersey.config.server.provider.classnames</param-name>
<param-value>
org.glassfish.jersey.server.gae.GaeFeature;
org.glassfish.jersey.server.mvc.jsp.JspMvcFeature;
org.glassfish.jersey.media.multipart.MultiPartFeature;
</param-value>
</init-param>
<init-param>
<param-name>com.sun.jersey.config.feature.Trace</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey Web Application</servlet-name>
<url-pattern>/rest/*</url-pattytern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>home.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>ObjectifyFilter</filter-name>
<filter-class>com.googlecode.objectify.ObjectifyFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>ObjectifyFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- Spring Security Filter -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml </param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<filter>
<filter-name>GlobalResponseFilter</filter-name>
<filter-class>com.mypackage.GlobalResponseFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>GlobalResponseFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<security-constraint>
<web-resource-collection>
<web-resource-name>everything</web-resource-name>
<url-pattern>/*</url-pattern>
</web-resource-collection>
<user-data-constraint>
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
</user-data-constraint>
</security-constraint>
<!-- ** -->
<!-- ** General session timeout in minutes -->
<!-- ** -->
<session-config>
<session-timeout>1440</session-timeout>
</session-config>
</web-app>
ResponseModel is just a basic serializable java class :
import java.io.Serializable;
public class ResponseModel implements Serializable
{
private static final long serialVersionUID = 1L;
private int code;
private Serializable data;
public ResponseModel()
{
}
public ResponseModel(int code, Serializable data)
{
System.err.println("Code " + code + " : " + data);
this.code = code;
this.data = data;
}
public int getCode()
{
return code;
}
public void setCode(int code)
{
this.code = code;
}
public Serializable getData()
{
return data;
}
public void setData(Serializable data)
{
this.data = data;
}
}
解决方案
Can you try again with the following configuration:
<servlet>
<servlet-name>API</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
...
<init-param>
<param-name>jersey.config.server.response.setStatusOverSendError</param-name>
<param-value>true</param-value>
</init-param>
</servlet>
This flag defines if Jersey - when sending a 4xx or 5xx response status - uses ServletResponse.sendError(flag is false) or ServletResponse.setStatus (flag is true).
Calling ServletResponse.sendError usually resets the response entity and headers and returns a (text/html) error page for the status code.
Since you want to return an own custom error entity, you need to set this flag to true.
这篇关于为什么在返回使用Java / Jersey的404响应时获得静态文本/ html？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！
查看全文
