我有一个具有 RESTService 的 Tomcat 应用程序。 @Get 工作正常并响应正确的 json 对象。问题是在尝试实现 @Post json 服务时，我总是收到错误请求错误 400。
毕竟我的目的是上传和对象类型的Program
public class Program {
private long start;
private long stop;
private double temperature;
public Program(long start, long stop, double temperature) {
this.start = start;
this.stop = stop;
this.temperature = temperature;
}
}
这是我要上传的json:
{
"stop":1486119421283,
"start":1486119421283,
"temperature":2
}
这是我的代码:
@POST
@Path("/program")
@Consumes(MediaType.APPLICATION_JSON)
public Response crunchifyREST(InputStream incomingData) {
StringBuilder crunchifyBuilder = new StringBuilder();
try {
BufferedReader in = new BufferedReader(new InputStreamReader(incomingData));
String line = null;
while ((line = in.readLine()) != null) {
crunchifyBuilder.append(line);
}
} catch (Exception e) {
logger.error("Error Parsing: - ");
}
logger.debug("Data Received: " + crunchifyBuilder.toString());
// return HTTP response 200 in case of success
return Response.status(200).entity(crunchifyBuilder.toString()).build();
}
这些是 Maven 依赖项
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0
<groupId>home</groupId>
<artifactId>CTemp</artifactId>
<version>1.0</version>
<packaging>war</packaging>
<name>CTemp</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.9.7</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.7</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.1.7</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.21</version>
</dependency>
<dependency>
<groupId>com.pi4j</groupId>
<artifactId>pi4j-core</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20160212</version>
<type>jar</type>
</dependency>
<!--> REST DEPENDENCIES -->
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0.1</version>
</dependency>
<dependency>
<groupId>org.glassfish.hk2.external</groupId>
<artifactId>asm-all-repackaged</artifactId>
<version>2.2.0-b14</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>2.25</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>2.25</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-common</artifactId>
<version>2.25</version>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>3.2.4</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.25</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>7.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<finalName>CTemp</finalName>
</build>
最佳答案
您的代码运行良好。 (它有一些小缺陷，如果您注意编译器/IDE 警告就会发现)。我将它复制到 Tomcat/Jackson 项目中并进行了尝试:
$ curl -H "Content-Type: application/json" \
-X POST \
-d '{ "stop":1486119421283, "start":1486119421283, "temperature":2 }' \
http://localhost:8080/myproject/program
{ "stop":1486119421283, "start":1486119421283, "temperature":2 }
您可能发送了错误的请求(就像错误消息告诉您的那样)。如果没有看到您如何发送请求，我们无法猜测那会是什么。
我尝试发送无效的内容类型，得到的是 415，而不是 400:
$ curl -f -H "Content-Type: text/plain" \
-X POST \
-d '{ "stop":1486119421283, "start":1486119421283, "temperature":2 }' \
http://localhost:8080/myproject/program
curl: (22) The requested URL returned error: 415 Unsupported Media Type
请注意，因为您实际上并未进行任何 JSON 处理，所以在这个阶段正文是否实际上是 JSON 无关紧要:
$ curl -H "Content-Type: application/json" \
-X POST \
-d 'Not actually JSON' \
http://localhost:8080/myproject/program
Not actually JSON
关于java - 使用 Tomcat 对 json POST 的错误请求，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42022664/