![](/img/trans.png)
[英]How to pass @EmbeddedId in POST json in spring-boot data rest
[英]POST data using JSON, REST, Spring Boot JAVA
我正在嘗試使用JSON和spring boot @RestController發出發布請求。 我正在測試CRUD操作,但POST有一些問題。 我已經抄襲了下面的例外。 希望有人會幫助。
public class MuscleCar {
private int id;
private String carBrand;
private String carModel;
private int horsepower;
private String carEngine;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getCarBrand() {
return carBrand;
}
public void setCarBrand(String carBrand) {
this.carBrand = carBrand;
}
public String getCarModel() {
return carModel;
}
public void setCarModel(String carModel) {
this.carModel = carModel;
}
public String getCarEngine() {
return carEngine;
}
public void setCarEngine(String carEngine) {
this.carEngine = carEngine;
}
public int getHorsepower() {
return horsepower;
}
public void setHorsepower(int horsepower) {
this.horsepower = horsepower;
}
DAO的方法
@Override
public List<MuscleCar> addCarToList(MuscleCar muscleCar) {
String sql = "insert into muscle_cars (car_brand, car_model, horsepower, car_engine) values (?, ?, ?, ?)";
Object[] args = new Object[] {muscleCar.getCarBrand(), muscleCar.getCarModel(), muscleCar.getHorsepower(), muscleCar.getCarEngine()};
return getJdbcTemplate().query(sql, args, new MuscleCarRowMapper());
}
資源方法
@RequestMapping(value = "/add-car", method = RequestMethod.POST)
public ResponseEntity<List<MuscleCar>> addCarToList(MuscleCar muscleCar) {
try {
List<MuscleCar> mc = m.addCarToList(muscleCar);
return ResponseEntity.status(HttpStatus.OK).body(mc);
} catch (Exception e) {
e.printStackTrace();
return ResponseEntity.status(HttpStatus.BAD_REQUEST).build();
}
}
例外
org.springframework.dao.TransientDataAccessResourceException: PreparedStatementCallback; SQL [insert into muscle_cars (car_brand, car_model, horsepower, car_engine) values (?, ?, ?, ?)]; Can not issue data manipulation statements with executeQuery().; nested exception is java.sql.SQLException: Can not issue data manipulation statements with executeQuery().
at org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.doTranslate(SQLStateSQLExceptionTranslator.java:108)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:649)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:684)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:716)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:726)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:776)
at com.scar.dao.MuscleCarDaoImpl.addCarToList(MuscleCarDaoImpl.java:42)
at com.scar.dao.MuscleCarDaoImpl$$FastClassBySpringCGLIB$$14c1a4cb.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:721)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656)
at com.scar.dao.MuscleCarDaoImpl$$EnhancerBySpringCGLIB$$9db5f83a.addCarToList(<generated>)
at com.scar.resource.MuscleCarResource.addCarToList(MuscleCarResource.java:58)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.sql.SQLException: Can not issue data manipulation statements with executeQuery().
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:897)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:886)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860)
at com.mysql.jdbc.StatementImpl.checkForDml(StatementImpl.java:463)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1923)
at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:692)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:633)
... 56 more
編輯:我已更改與更新查詢。 現在,當我嘗試發布JSON時,出現此異常。 我覺得當我嘗試發布JSON時,MuscleCar對象的字段從未初始化,但我不知道如何初始化它們。
JSON格式
{
"carBrand":"BMW",
"carModel":"530",
"hoursepower":250,
"carEngine":"M-Power V8"
}
例外:
org.springframework.dao.DataIntegrityViolationException: PreparedStatementCallback; SQL [insert into muscle_cars (car_brand, car_model, horsepower, car_engine) values (?, ?, ?, ?)]; Column 'car_brand' cannot be null; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'car_brand' cannot be null
at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:85)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:649)
at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:870)
at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:931)
at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:941)
at com.scar.dao.MuscleCarDaoImpl.addCarToList(MuscleCarDaoImpl.java:42)
at com.scar.dao.MuscleCarDaoImpl$$FastClassBySpringCGLIB$$14c1a4cb.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:721)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656)
at com.scar.dao.MuscleCarDaoImpl$$EnhancerBySpringCGLIB$$9db5f83a.addCarToList(<generated>)
at com.scar.resource.MuscleCarResource.addCarToList(MuscleCarResource.java:57)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
應該使用update方法代替JdbcTemplate.query()
來進行寫操作。
然后,將使用JDBC方法executeUpdate
而不是executeQuery
,這是消息的原因:
無法使用executeQuery()發出數據操作語句
我嘗試發布JSON,但MuscleCar對象的字段從未初始化,但我不知道如何初始化它們。
您需要將@RequestBody
添加到controller方法中,以便將使用傳入的請求json數據填充MuscleCar
對象。
@RequestMapping(value = "/add-car", method = RequestMethod.POST)
public ResponseEntity<List<MuscleCar>>
addCarToList(@RequestBody MuscleCar muscleCar) {
try {
List<MuscleCar> mc = m.addCarToList(muscleCar);
return ResponseEntity.status(HttpStatus.OK).body(mc);
} catch (Exception e) {
e.printStackTrace();
return ResponseEntity.status(HttpStatus.BAD_REQUEST).build();
}
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.