Spring MVC常用注释：@MatrixVariable注释

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org.springframework.web.bind.annotation.MatrixVariable注释拓展了URL请求地址的功能使用@MatrixVariable注释时多个变量可以使用;分隔，该注释允许开发者进行多条件组合查询。
属性 类型 是否必要 说明
name
String
 否 指定请求参数绑定的名称，如果省略则绑定同名参数
value String 否 name属性的别名
pathVar String 否 matrix variable所在路径的url path变量的名称
required String 否 指示参数是否必须绑定
defaultValue String 否 如果没有传递参数而使用默认值
需要注意的是，@MatrixVariable注释功能在SpringMvc中默认是不启用的，我们首先需要启用这个注释功能：
（1）修改springmvc-config.xml，添加：
  1. <mvc:annotation-driven enable-matrix-variables="true”/>
<mvc:annotation-driven enable-matrix-variables="true”/>
（2）将RemoveSemicolonContent设置为false
  1. package org.fkit.configuration;
  2. import org.springframework.beans.factory.InitializingBean;
  3. import org.springframework.beans.factory.annotation.Autowired;
  4. import org.springframework.context.annotation.Configuration;
  5. import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
  6. @Configuration
  7. public class CustomMvcConfiguration implements InitializingBean {
  8. @Autowired
  9. private RequestMappingHandlerMapping requestMappingHandlerMapping;
  10. @Override
  11. public void afterPropertiesSet() throws Exception {
  12. requestMappingHandlerMapping.setRemoveSemicolonContent(false);
  13. }
  14. }
package org.fkit.configuration;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
@Configuration
public class CustomMvcConfiguration implements InitializingBean {
    @Autowired
    private RequestMappingHandlerMapping requestMappingHandlerMapping;
    @Override
    public void afterPropertiesSet() throws Exception {
        requestMappingHandlerMapping.setRemoveSemicolonContent(false);
    }
}

然后我们就可以使用这个注释了

  1. package org.fkit.controller;
  2. import org.springframework.stereotype.Controller;
  3. import org.springframework.ui.Model;
  4. import org.springframework.web.bind.annotation.GetMapping;
  5. import org.springframework.web.bind.annotation.MatrixVariable;
  6. import org.springframework.web.bind.annotation.PathVariable;
  7. @Controller
  8. public class MarixVariableController
  9. {
  10. @GetMapping(value="/matrixVariable/{userId}")
  11. public String marixVariable(
  12. @PathVariable Integer userId,
  13. @MatrixVariable(value="name",pathVar="userId") String name,
  14. @MatrixVariable(value="age",pathVar="userId") String age,
  15. Model model
  16. )
  17. {
  18. model.addAttribute("userId",userId);
  19. model.addAttribute("name", name);
  20. model.addAttribute("age",age);
  21. return "marixVariable";
  22. }
  23. }
package org.fkit.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.MatrixVariable;
import org.springframework.web.bind.annotation.PathVariable;
@Controller
public class MarixVariableController
{
@GetMapping(value="/matrixVariable/{userId}")
public String marixVariable(
@PathVariable Integer userId,
@MatrixVariable(value="name",pathVar="userId") String name,
@MatrixVariable(value="age",pathVar="userId") String age,
Model model
)
{
model.addAttribute("userId",userId);
model.addAttribute("name", name);
model.addAttribute("age",age);
return "marixVariable";
}
}