前言
如题所示,使用 spring+springmvc+mybatis 时报如下错误
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalArgumentException: No converter found for return value of type: class com.kstar.pojo.TbItem org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:981) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:860) javax.servlet.http.HttpServlet.service(HttpServlet.java:635) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) No converter found for return value of type: class com.kstar.pojo.TbItem
解决
@Autowired private ItemServiceImpl itemService; @RequestMapping(value = "/item/default",method = RequestMethod.GET) public @ResponseBody TbItem getDefaultTest(){ TbItem tbItem = itemService.queryItemById((long) 691300); return tbItem; }
查找了半天,才发现是没有配置 将对象转正 json 的 jar 。手动添加 jackson
依赖。
<jackson.version>2.5.4</jackson.version> <!--jackson--> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency>
ok 解决!

未经允许不得转载:老郭种树 » nested exception is java.lang.IllegalArgumentException: No converter found for return value of type
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