Java 无法在spring RestController中调用REST服务
我已经使用Spring5Java 无法在spring RestController中调用REST服务,java,spring,spring-mvc,spring-restcontroller,spring-rest,Java,Spring,Spring Mvc,Spring Restcontroller,Spring Rest,我已经使用Spring5@RestController实现了RESTWebService pom.xml <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/mav
@RestController
实现了RESTWebService
pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ag</groupId>
<artifactId>myFirstWeb</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>myFirstWeb Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.0.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jdbc</artifactId>
<version>1.0.0.M3</version>
</dependency>
<!-- ojdbc6.jar example -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.xml.bind/jaxb-api -->
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.2.11</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>spring-libs-milestone</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/libs-milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<build>
<finalName>myFirstWeb</finalName>
</build>
</project>
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/spring/*</url-pattern>
</servlet-mapping>
</web-app>
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:ctx="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:jee="http://www.springframework.org/schema/jee"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<ctx:component-scan base-package="com.*" />
<ctx:annotation-config />
<mvc:annotation-driven />
<!-- JSON Support -->
<bean name="viewResolver" class="org.springframework.web.servlet.view.BeanNameViewResolver"/>
<bean id="datasource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@localhost:1521:XE" />
<property name="username" value="SYSTEM" />
<property name="password" value="xlri@123" />
</bean>
</beans>
但我无法调用
/spring/first/students
它给出的错误是:
HTTP Status 406 – Not Acceptable
然后我把代码改成
@RequestMapping(value="/students",method=RequestMethod.GET,produces="application/json")
public ResponseEntity<List<StudentVO>> getAllStudents(){
List<StudentVO> list = null;
ResponseEntity<List<StudentVO>> responseEntity = null;
System.out.println(" Studeent list ");
try {
list = this.service.getAll();
for(StudentVO vo : list) {
System.out.println(vo);
}
responseEntity = new ResponseEntity<List<StudentVO>>(list,HttpStatus.OK);
}catch(Exception e) {
e.printStackTrace();
}
return responseEntity;
}
StudentVO.java
package com.pk.vo;
import java.io.Serializable;
public class StudentVO implements Serializable{
/**
*
*/
private static final long serialVersionUID = 145L;
private Integer studentId;
private String studentName;
public Integer getStudentId() {
return studentId;
}
public void setStudentId(Integer studentId) {
this.studentId = studentId;
}
public String getStudentName() {
return studentName;
}
public void setStudentName(String studentName) {
this.studentName = studentName;
}
@Override
public int hashCode(){
int hash = 31;
int hashFromId = this.studentId.hashCode();
hash = (7 * hash) + hashFromId;
return hash;
}
@Override
public boolean equals(Object object) {
boolean flag = false;
StudentVO vo = (StudentVO) object;
if(vo != null && this.studentId.intValue() == vo.studentId.intValue()) {
flag = true;
}
return flag;
}
public String toString() {
StringBuilder strb = new StringBuilder();
strb.append("\nStudent-ID ").append(this.studentId).append(",\tStudent-Name ").append(this.studentName);
return strb.toString();
}
}
您能告诉我哪里错了吗?将以下依赖项添加到pom.xml中,您会收到错误,因为spring无法将列表序列化为JSON,这由JSON处理,但是使用spring 4.1.1+您必须自己添加这些依赖项:
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.4.1</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.4.1.1</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.13</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
com.fasterxml.jackson.core
杰克逊核心
2.4.1
com.fasterxml.jackson.core
杰克逊数据绑定
2.4.1.1
org.codehaus.jackson
jackson core asl
1.9.13
org.codehaus.jackson
杰克逊地图绘制者
1.9.13
HTTP Status 406 – Not Acceptable
package com.pk.vo;
import java.io.Serializable;
public class StudentVO implements Serializable{
/**
*
*/
private static final long serialVersionUID = 145L;
private Integer studentId;
private String studentName;
public Integer getStudentId() {
return studentId;
}
public void setStudentId(Integer studentId) {
this.studentId = studentId;
}
public String getStudentName() {
return studentName;
}
public void setStudentName(String studentName) {
this.studentName = studentName;
}
@Override
public int hashCode(){
int hash = 31;
int hashFromId = this.studentId.hashCode();
hash = (7 * hash) + hashFromId;
return hash;
}
@Override
public boolean equals(Object object) {
boolean flag = false;
StudentVO vo = (StudentVO) object;
if(vo != null && this.studentId.intValue() == vo.studentId.intValue()) {
flag = true;
}
return flag;
}
public String toString() {
StringBuilder strb = new StringBuilder();
strb.append("\nStudent-ID ").append(this.studentId).append(",\tStudent-Name ").append(this.studentName);
return strb.toString();
}
}
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.4.1</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.4.1.1</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.13</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>