Spring版本4.2.0,Hibernate 4.1.4
这是我的Controller功能:
@RequestMapping(value = "/mobile/getcomp", method = RequestMethod.GET)
@ResponseBody
public List<Company> listforCompanies() {
List<Company> listOfCompanies= new ArrayList<Company>();
listOfCompanies = companyManager.getAllCompanies();
return listOfCompanies;
}
杰克逊JSON映射器依赖Pom.xml:
<!-- Jackson JSON Mapper -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>${jackson.version}</version>
</dependency>
获取列表ArrayList,但返回时会显示以下错误:
SEVERE: Servlet.service() for servlet [dispatcherServlet] in context with path [/IrApp] threw exception [Request processing failed; nested exception is java.lang.IllegalArgumentException: No converter found for return value of type: class java.util.ArrayList] with root cause
java.lang.IllegalArgumentException: No converter found for return …我有一个 spring boot webapp，我在其中定义了 REST API。我正在使用 Spring Security 来保证 REST API 安全。
我用 RestController 注释了我的控制器类。我最近将 spring boot、mvc 和 security 更新到最新版本。
我现在看到在我的负面情况下，在更新之前它返回 json 错误响应，但现在更新后，它返回 html 错误响应。
在更新之前，它给出了以下错误响应-
{
"timestamp": "2018-05-21T18:22:37.105+0000",
"status": 500,
"error": "Internal Server Error",
"message": "Error message.",
"path": "<API path>"
}
更新后，它给出了以下响应。
<!DOCTYPE html>
<html>
<head>
<title>Apache Tomcat/8.0.51 - Error report</title>
<style type="text/css">H1 {font-family:Tahoma,Arial,sansserif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}A.name {color : black;}.line {height: 1px; background-color: #525D76; border: none;}</style>
</head>
<body>
<h1>HTTP …